Seminars from October 1987 to July 07
 15th October 1987
 David Rand Warwick
"What do strange attractors have to do with turbulence?"
 22nd October 1987
 Mike Kearney Warwick
"One parameter scaling theory of localization  an introduction"
 22nd October 1987
 Angus MacKinnon Imperial
"Aspects of the quantum Hall effect"
 12th November 1987
 Michael Proctor DAMTP
"Strong spatial resonance an travelling waves in convection"
 19th November 1987
 Volker Heine Cavendish
"Microscopic mechanisms for incommensurate structures"
 3rd December 1987
 David Lowe Aston
"Neural Networks: Automatic machine learning of nonlinear pattern processing"
 28th January 1988
 Alison Walker UEA
"What we can learn from positrons at surfaces"
 11th February 1988
 Julia Yeomans Oxford
"Layering transitions of interfaces"
 18th February 1988
 Susan Ryrie
"Particle paths in wavy vortices
 25th February 1988
 Adrian Wander Warwick
"Cluster models in surface physics"
 3rd March 1988
 J.K. Bhattacharjee
"Hydrodynamic instabilities in binary fluids"
 10th March 1988
 David Holton Warwick
"A tricritical bifurcation in doubly diffusive convection"
 17th March 1988
 Mike Payne Cavendish
"Surface reconstruction in germanium"
 28th April 1988
 Mike Cates Cavendish
"Theory of microemulsions"
 5th May 1988
 Nick Manton DAMTP
"Interactions between skyrmions"
 12th May 1988
 Allan Solomon DAMTP
"Do fractional photons exist?"
 19th May 1988
 Leonardo Castillejo
"Skyrmion model of superconductivity"
 26th May 1988
 Mike Kearney Warwick
"Thermal transport in disordered systems"
 2nd June 1988
 S. Sarkar Rutherford
"Physics from supernova 1987a"
 9th June 1988
 David Pettifor Imperial
"Quantum mechanics in alloy design"
 11th October
 Ian Aitchison Oxford
"Topological terms in models of HTC superconductors"
 20th October 1988
 William Barford Rutherford
"Oxygen hole pairing via Coulomb repulsion. A model for HTC superdonductivity"
 17th November 1988
 David Miller Warwick
"Does Lande's blade still cut any ice?"
 24th November 1988
 Nathan Andrei
"The Cooper instability in the presence of spin liquids"
 12th January 1989
 Phil Smith
"The periodic MINDO molecular orbital method as a surface analytical technique"
 26th January 1989
 Tom McLeish Leeds
"Dynamics and topology of polymer melts"
 9th February 1989
 John Wheater Oxford
"Random Lattice Fermions"
 23rd February 1989
 David Thouless UW, Seattle
"Hopping conductivity in mesoscopic systems"
 2nd March 1989
 Paul Glendinning Warwick
"Flows and maps of the interval"
 25th April 1989
 Alan Newell Arizona
"Dynamics of patterns"
 27th April 1989
 Maurice Rice ETH, Zurich
"High T_{c}"
 11th May 1989
 Brian Holland Warwick
"Understanding Quantum Mechanics"
 18th May 1989
 Alan Bray Manchester
"Path integrals and stochastic processes"
 25th May 1989
 Susan Cartwright Sheffield
"Z^{0} decays at LEP"
 8th June 1989
 Richard Needs Cavendish
"Temperature dependence of the band gap of Si"
 5th October 1989
 Phil Woodruff
"Band Mapping with Photoemission and Inverse Photoemission''
 26th October 1989
 David Park
"Is Computer Science?"
 2nd November 1989
 Mark Roberts
"Examples of Symmetry Breaking and Pattern Formation"
 9th November 1989
 Sam Edwards
"The Ageing of Glass"
 16th November 1989
 Ben Simons
"Spinless Polarons"
 23rd November 1989
 Paul Townsend
"Extended Objects, Supersymmetry and Topological Charges"
 7th December 1989
 David Sherrington
"Neural Networks for Associative Memory"
 11th January 1990
 Andrew Fabian
"Evidence for Black Holes"
 18th January 1990
 Mark Warner
"Liquid Crystal Polymers"
 25th January 1990
 Mike Kearney
 1st February 1990
 Nathan Mattor
"Intermittency Formation in Turbulence"
 8th February 1990
 Ian Stewart
"Symmetry Properties of Convection in Porous Media"
 15th February 1990
 George Rowlands "Stability of nonlinear waves''
 22nd February 1990
 Martin Long
"Spin Coherence from Charge Motion in High T_{c} Superconductivity"
 1st March 1990
 Seb Doniach
"Kinetics of Flux Flow in High T_{c} Superconductivity"
 8th March 1990
 Ray Dupree
"NMR Studies of High T_{c} Superconductors"
 3rd May 1990
 Mike Moore
"The Effects of Disorder and Thermal Fluctuations on HighTemperature Superconductors''
 24th May 1990
 Emily Stone
"Power Spectra of Forced Oscillators: Distinguishing Noise from Deterministic Chaos"
 31st May 1990
 Simon Bending
"Investigations of a TwoDimensional Electron Gas Magnetically Coupled to a Type II Superconductor"
 7th June 1990
 Selina Siak
 14th June 1990
 Bob Clark
"The Fractional Quantum Hall Effect: Optical Detection of the Electron Liquid and Extension to the Solid Regime
 4th October 1990
 John Saunders, RHBNC,
"Nuclear Magnetism of thin ^{3}He Films".
 11th October 1990
 Peter Knight, Imperial,
"Squeezed States".
 18th October 1990
 Andrew Lyne, Manchester,
"Millisecond Pulsars".
 25th October 1990
 Brian Gallagher, Nottingham,
"Universal Thermopower Fluctuations".
 1st November 1990
 Alan McKane, Manchester,
"Scaling and Universality in Fully Developed Turbulence".
 8th November 1990
 Douglas Abraham, Oxford,
"Statics and Dynamics of Wetting".
 22nd November 1990
 Warren Pickett, Cavendish,
"Lattice Statics, Dynamics and ElectronPhonon Coupling in High T_{c} Materials".
 29th November 1990
 Tania Monteiro, Brighton,
Approximate title "Quantum Chaos in Rydberg Atoms".
 6th December 90
 Julie Staunton, Warwick,
"Charge Transfer in ChromeNickel Alloys".
 17th January 1991
 Baldizsar Janko
"Analytic Study of Gutzwiller's Wavefunction for the Ddimensional Hubbard Model"
 31st January 1991
 Matthew Foulkes
"Pseudopotentials for Quantum Monte Carlo Calculations"
 7th February 1991
 John Rarity
"What is Two Photons?"
 14th February 1991
 M. Babiker
"Optical Phonons and Polaritons in Superlattices''
 21st February 1991
 Paul Matthews
"Dynamics of Large Populations of Coupled Oscillators"
 28th February 1991
 Doug Gough
"The Solar Neutrino Problem"
 7th March 1991
 Robin Ball
"Selfsimilar Crack Propagation Model in 2D"
 12th March 1991
 Dominic Tylldesley
"Computer Simulations of Molecular Absorption"
 25th April 1991
 Dimitri Khmelnitskii
"Weak Localisation of 2D Electrons and Negative Magnetoresistance"
 2nd May 1991
 Keith Burnett
"Generation of Short Pulse Xrays"
 9th May 1991
 Andrew Gilbert
"Fast Dynamo Action in a Chaotic Web"
 16th May 1991
 Steve Hayden
"Magnetic Response and Marginal Fermi Liquid Behaviour in Cuprates"
 21st May 1991
 Uzy Smilansky
"Chaotic Scattering"
 30th May 1991
 Herbert Huppert
"Geological Fluid Mechanics"
 13th June 1991
 Helen McNeil
"Physics, Metaphysics and Metaphor"
 3rd October 1991
 Andrew Turberfield Oxford
"Optical spectroscopy of fractional quantum Hall and electron solid regimes''
 10th October 1991
 Graham Ross Oxford
Tentative title "Evidence for supersymmetry''
 17th October 1991
 Richard Jones Cavendish
"Surface driven phase transitions in thin polymer films''
 31st October 1991
 Rudolf Morf PSI, Zurich "Hierarchical Theory of FQHE: Analysis of its predictions''
 7th November 1991
 Robert MacKay Warwick
"Chaotic equilibrium states in Peierls chains après Aubry''
 14th November 1991
 Anita Mehta Birmingham
"The completely inelastic bouncing ball''
 21st November 1991
 Mike Irwin RGO
"Surveying the universe at high redshift''
 28th November 1991
 Brian Fulton Birmingham
"Clustering in the nucleus: the observation and study of nuclear molecules''
 5th December 1991
 Mike Ashby FRS Cambridge
Materials Selection for Composite Design
 9th January 1992
 Igor Lerner Birmingham
"Mesoscopic conductance fluctuations and statistical approach to Anderson transition''
 16th January 1992
 Keith Burnett Oxford
"Theory of atoms and ions and plasmas in intense laser fields''
 23rd January 1992
 Derek Lee Oxford
"Localised states in Bose condensed systems''
 6th February 1992
 Lenny Smith Warwick
Flow visualization in phase space
 13th February 1992
 Tony Bell Imperial
"Implosion of inertial confinement fusion targets''
 18th February 1992
 David Edwards Imperial
"Exchange coupling and giant magnetoresistance in magnetic multilayers''
Please note this is TUESDAY 18th.
 27th February 1992
 Colin Humphreys Cambridge
"Nanometerscale Ebeam lithographywriting encyclopedias on pinheads''
 5th March 1992
 Richard Friend Cambridge
"Optoelectronic devices fabricated with polymers''
 12th March 1992
 Michael Thomson UCL
"Chaos, fractals and indeterminacy in driven oscillations''
 30th April 1992
 John Chalker Oxford
"Hidden order in a frustrated system''
 7th May 1992
 Oswild Willi Imperial
"Timeresolved soft xray imaging and applications''
 14th May 1992
 Richard Palmer Cavendish
"Electronmolecule dynamics at surfaces''
 21st May 1992
 Andrew Parry Bristol
"Conformal invariance and interfaces''
 28th May 1992
 Dan McKenzie Bullard Laboratories
"Melting and meltmovement in the mantle''
 2nd June 1992
 John Hinch DAMTP
"Fractal aggregation in sedimentation and compaction''
Please note that this is TUESDAY 2nd June.
 11th June 1992
 David Crighton DAMTP
"New aspects of wave and stability theory''
 14th January 1993
 John Nelson Birmingham
"Nuclear Matter at High Temperature"
 21st January 1993
 David Williams Hitachi
"Coherent Nonequilibrium Phonons: an Induced Peierls Transition"
 28th January 1993
 Philippe Binder Oxford
"Collective Temporal Evolution in Complex Systems"
 4th February 1993
 Mike Harris DRA
"Noise Cancellation in Lasers"
 11th February 1993
 Adrian Wyatt Exeter
"Quantum Evaporation and Excitations in ^{3}He''
 18th February 1993
 Matthew Turner Cavendish
"Surfaceinduced Frustration in Ordered Diblock Copolymers''
 25th February 1993
 Chris Watts Warwick
"Ion Temperature Profiles in Fusion Plasmas''
 4th March 1993
 Frank Read Manchester
"The He (e,2e) Ionization Process"
 18th March 1993
 Roger Phillips Rutherford
"Neutrino Oscillations and the Solar Neutrino Puzzle"
 29th April 1993
 James Vickers Southampton
"Is timetravel possible?''
 6th May 1993
 Charles Smith Cavendish
"AharonovBohm effect in edge states''
 13th May 1993
 Artur Ekert Oxford
"Quantum Cryptography''
 20th May 1993
 Journal Club
`Mathematics and the Bucky Ball', Sternberg and Chung, American Scientist 81 (1993) 56.
Berichter: Robert MacKay
 27th May 1993
 Brian Buck Oxford
"Sunspots, with application to time series analysis''
ABSTRACT: Astrophysical literature contains many attempts to extract clues to the physics of the sun from the large database of Wolf Sunspot Numbers; in particular, an irregular cycle of eleven years has been known for a long time. Most of the techniques of time series analysis have been used on this data set in recent years. I have selected this interesting record as a test bed for developing new methods of spectral analysis and I will explain how the problem of identifying periodicities in a short time series can be treated by Bayesian probability theory and the method of Maximum Entropy. The fine structure of the derived sunspot spectrum shows some intriguing features.
 8th June 1993
 David Rand Warwick
"Evolution and ecology in spatially extended systems''
 10th June 1993
 Roger Penrose Oxford
"Quasicrystals''
 30th September 1993
 Yu Lu, Trieste
"Charge transfer polarons and optical absorption in Lanthanum compounds''
 7th October 1993
 No seminar
 14th October 1993
 YanMin Li Warwick
Informal report on San Sebastien Hubbard Model Conference
 21st October 1993
 Nigel Stocks, Engineering
"Stochastic resonance''
 28th October 1993
 Andrew King, Leicester
"Small stars = big physics''
 4th November 1993
 Toby Perring, Rutherford
(probable title) "Spinons in KCuF_{3}''
 11th November 1993
 Gil Lonzarich, Cavendish
"Marginal Fermi liquids''
 18th November 1993
 Mike Rusbridge, UMIST
"Magnetic relaxation in plasmas''
 25th November 1993
 David Tilley, Essex
"AF IRspectroscopy of magnetic materials''
 2nd December 1993
 Mike Payne, Cavendish
"Free energy of diffusion: ab initio simulations on parallel compurters''
 13th January 1994
 Toby Perring, Rutherford
"Spinons in KCuF_{3}''
 20th January 1994
 Henrik Jensen Imperial
"Flux lines in HTC superconductors''
 27th January 1994
 Martin Dove Cambridge
"Lattice melting at a ferroelastic phase transition''
 3rd February 1994
 R McNeill Leeds
"Mechanics of animal movement''
 10th February 1994
 Peter Carpenter Warwick
"Gray's paradox: does the dolphin have a secret?''
 17th February 1994
 Christoph Keitel Imperial
"Free elecron lasing without inversion''
 24th February 1994
 David Waxman Sussex
"States at the core of a superconductor vortex''
 3rd March 1994
 Phil Anderson Princeton
"Theory of HTC superconductors''
 10th March 1994
 Chris Sachrajda Southampton
"Numerical simulations in particle physics''

28/04/1994 
Robin Catchpole, RGO 

"Active Galaxies with the HST" 
05/05/1994 
Michael McIntyre, DAMTP 

"Potentialvorticity inversion, Lighthill radiation and homoclinic tangles" 
12/05/1994 
Claude Baesens, Warwick 

"The Effect of a Slow Variation of a Parameter on the Dynamics of Nonlinear Systems" 
19/05/1994 
Peter Main, Nottingham 

"Mesoscopic Effects in Resonant Tunnelling" 
26/05/1994 
Adrian Wander, Cambridge 

"Automated Tensor LEED; New Challenges in Surface Structure Determination" 
02/06/1994 
Journal Club, Warwick 

 
06/10/1994 
Daping Chu, Warwick 

"The intrinsic quantum Hall effect" 
13/10/1994 
Balazs Gyorffy, Bristol 

"Quantum oscillations in a superconducting state" 
20/10/1994 
Ian Lawrie, Leeds 

Scaling in HTC superconductors" 
27/10/1994 
Joe Wheatley, Cambridge 

"Transport in doped Mott insulators" 
03/11/1994 
Dwight Barkley, Warwick 

"Highly accurate 3D stability computations of flow past a jumbo jet (modelled as a circular cylinder)" 
10/11/1994 
Robin Nicholas, Oxford 

"Fractals, fractions and composite fermions" 
17/11/1994 
John Healey, Cambridge 

"The role of a quadratic resonance in boundary layer stability" 
24/11/1994 
John Chalker, Oxford 

"Localisation in a random magnetic field" 
12/01/1995 
Matthew Turner, Cavendish 

"Interfacial Properties of Diblock Copolymers" 
19/01/1995 
Michael Swift, Theoretical Physics, Oxford 

"LatticeBoltzmann Studies of Nonideal Fluids" 
26/01/1995 
Boris Muzykantskii, Cavendish 

"Nearly Localized States in Weakly Disordered Conductors" 
02/02/1995 
Paul Madden, Physical Chemistry, Oxford 

"Covalent Effects in "Ionic" Systems" 
09/02/1995 
Tom Coolen, Theoretical Physics, Oxford 

"Dynamics of Disordered Spin Systems" 
16/02/1995 
Lev Mikheev, NORDITA 

"Glassy Dynamics of Pinned Lines and Interfaces" 
23/02/1995 
James Annett, Bristol 

"dwave Pairing in Superconductors" 
02/03/1995 
Mike Lea, RHBNC 

"Magnetoconductivity of 2D Electrons on He" 
09/03/1995 
Keith Barnham, Imperial College 

"Quantum Well Solar Cells" 
16/03/1995 
James Binney, Theoretical Physics, Oxford 

"Construction of Invariant Tori and Integrable Hamiltonians" 
27/04/1995 
Jonathan Halliwell, Imperial College 

"The decoherent histories approach to quantum mechanics" 
12/10/1995 
Mike Moore, Manchester 

"The phase diagram and phase fluctuations in type II superconductors 
19/10/1995 
Rob Smith, Birmingham 

"Can we tune the superconductorinsulator transition with magnetic impurities 
26/10/1995 
Mike Godfrey, Manchester 

"SIC DFT of bandgap renormalisation 
2/11/1995 
Mark Hindmarsh, Sussex 

"Formation of topological defects 
9/11/1995 
Mark Hadley, Warwick 

"Is there an alternative to quantum gravity?" 
16/11/1995 
Paul Bressloff, GEC 

"Selforganising neural networks near the AI limit 
23/11/1995 
Keith Moffat, Cambridge 

"Magnetohydrodynamics of planets, stars and galaxies" 
30/11/1995 
Tim Sluckin, Southampton 

"Liquid Crystals at Surfaces" 
25/01/1996 
Mike Kearney, Loughborough 

"Drift, diffusion and nonlinear propagation on tree structures" 
01/02/1996 
Volker Heine, Cambridge 

"The floppy/stiff duality and mechanism for structural phase transitions in silicate framework structures"
Silicate framework structures consist of rather stiff units (tetrahedra and octahedra) rather loosely jointed at their corners by shared oxygen atoms. Rigid Unit Modes are special phonons which are geometrically allowed possible motions while units remain completely rigid. They provide pathways for soft mode phase transitions and also have wider application to fluctuations, atomic ordering, the theory of the transition temperature, pressure effects, negative coefficient of expansion, and adsorption sites in zeolites. 
08/02/1996 
Gerard Hyland, Warwick 

"From complex numbers to vector algebra via quaternions" 
15/02/1996 
Allan Boardman, Salford 

"Microwave solitons in magnetic films" 
22/02/1996 
Paul Matthews, Nottingham 

"Convection in sunspots" 
29/02/1996 
Tao Xiang, Cambridge 

"Superfluid anisotropy in YBCO: Evidence for pair tunneling superconductivity" 
07/03/1996 
Graham Shore, Swansea 

"Faster than light photons and black holes" 
14/03/1996 
Journal Club, Warwick 

 
22/04/1996 
Konstantin Matveev, MIT 

"Coulomb blockade in quantum dots" 
02/05/1996 
Simon Phoenix, BT, Martlesham Heath 

"Quantum Cryptographyprotecting our networks with quantum mechanics" 
07/05/1996 
Paul Higgs, Manchester 

"Thermodynamics of RNA folding" 
16/05/1996 
David Hughes, Leeds 

"Suppression of chaos in nonlinear models of dynamos" 
23/05/1996 
Subir Sarkar, Oxford 

"Probing the early universe" 
30/05/1996 
Robert Pettifer, Warwick 

 
06/06/1996 
David Sherman, Bristol 

"High pressure electronic structure and phase transitions of iron compounds and the nature of the earth's core" 
13/06/1996 
Journal Club, Warwick 

 
10/10/1996 
Miron Amusia, Imperial College 

"Atoms as multiparticle systems" 
17/10/1996 
Robin Ball, Cavendish 

"Mechanisms for global optimization of river networks from local erosion rules" 
24/10/1996 
Nick Hill, Leeds 

"From the microscopic to the macroscopic: pattern formation by suspensions of swimming microorganisms" 
31/10/1996 
David Lowe, Aston 

"From financial markets to the research assessment exercise: Some recent developments in the application of artificial neural networks" 
07/11/1996 
Alexei Tsvelik, Oxford 

"Luttinger and Fermi liquids: stability with respect to interchain hopping" 
14/11/1996 
George Japaridze, Sussex 

 
21/11/1996 
Richard Dendy, Culham 

"Fusion product transport in strongly turbulent plasmas" 
28/11/1996 
Andrew King, Birmingham 

"Some unsteady freesurface flows" 
05/12/1996 
Stephen Julian, Cavendish 

"Strongly correlated electrons in the T 0 limit: heavy fermions and other exotica" 
16/01/1997 
Andrew Steane, Clarendon 

"Stabilising quantum behaviour by quantum error correction" 
23/01/1997 
James Nicholls, Cavendish 

"Electronelectron interactions in 1 and 2 dimensions as observed in GaAs systems" 
30/01/1997 
Frank Hekking, Cavendish 

"Quantum fluctuations in the equilibrium state of a thin superconducting loop" 
06/02/1997 
Frank Pinski, Warwick 

"The electronic structure and phase diagrams of alloys" 
13/02/1997 
Matthew Turner, Warwick 

"Polymers, BSE and CJD" 
20/02/1997 
Eric Blackman, Cambridge 

"Aspects of dynamo theory and the 'backreaction' problem" 
27/02/1997 
Tom McLeish, Leeds 

"On the trail of topological fluids" 
06/03/1997 
Steve Hayden, Bristol 

"The de Haas van Alphen effect in the mixed state of superconductors"
The de Haasvan Alpen effect (Landau quantum oscillations) has now been reported in a number of type II superconductors, including NbSe_{2}, Nb_{3}Sn, V_{3}Si, CeRu_{2} and the borocarbides. This technique is potentially a powerful probe of the superconducting state. I will discuss the present experimental situation, compare observations with a number of theoretical models in the literature and suggest future directions for this work. 
13/03/1997 
Piers Coleman, Oxford 

"Supercoherent Kondo effect" 
 28th April 1997
 Hans Henrik Rugh Warwick
"A geometrical and dynamical approach to temperature"
 9th May 1997
 Robert Bingham RAL
"Photon Landau Damping"
 15th May 1997
 Valodya Falko Lancaster
"Image of local density of states fluctuations in disordered metals seen in resonant tunneling via a single impurity level"
 22nd May 1997
 Peter Olmsted Leeds
"Nonequilibrium phase transitions in complex fluids"
 29th May 1997
 Claudia Eberlein Cambridge
"Sonoluminescence as quantum vacuum radiation"
nda
bm
09/10/1997 
A. Mirlin, Karlsruhe 

"Composite fermions and transport near halffilling of the lowest Landau level" 
23/10/1997 
Fedor Kusmartsev, Loughborough 

"Vortex Nucleation in the Flow" 
06/11/1997 
James Annet, Bristol 

"Symmetries, fluctuations and superconductivity in the Hubbard model" 
20/11/1997 
Robin Ball, Cambridge 

"Protein folding and its inverse" 
27/11/1997 
Robin Nicholas, Oxford 

"Optical properties of skyrmions" 
02/12/1997 
Henrik Jeldtoft Jensen, Imperial College 

"On the necessary conditions for Selforganised Criticality" 
12/02/1998 
Mike Payne, Cambridge 

"Ab initio total energy calculations2 
19/02/1998 
Stewart Hodges, Warwick Business School 

"Financial mathematics" 
26/02/1998 
David Broomhead, UMIST 

 
05/03/1998 
Laurence Eaves, Nottingham 

"Magnetoresonant suppression of conduction in quasi1D WannierStark superlattices" 
12/03/1998 
To be announced,  

 
14/05/1998 
Andy Mackenzie, Birmingham, Physics 

"The metallic and superconducting properties of the layered perovskite Sr_{2}RuO_{4}" 
04/06/1998 
David Logan, Oxford, Chemistry 

"A local moment approach to strongly correlated electrons" 
15/10/1998 
Nigel Cooper, Birmingham 

"Solitons in Ferromagnets and Quantum Hall Ferromagnets" 
23/10/1998 
Ian Kogan, Oxford 

"The Quantum Hall Effect From a String Theorist's Point of View" 
29/10/1998 
Mathew Turner, Warwick 

"Physists thinking about DNA" 
05/11/1998 
Michael Swift, Manchester 

"The Dynamics of Inelastic Brownian Particles" 
12/11/1998 
1. Ahmed Alfalou, and 2. Alessandro Flammini,
Journal Club, Warwick 

1. "Bifurcation and Limit Velocity in Fracture"
2. "Statistical mechanics of river networks" 
19/11/1998 
1. Rita Tsaousidou and 2. Sayed Razee,
Journal Club, Warwick 

1. "Phonon Drag Thermopower in LowDimensional Semiconductor Nanostructures"
2. "Magnetic Anisotropy of OneDimensional Nanostructures of Transi 
26/11/1998 
Peter King, BP Research 

"Application of Statistical Physics to the Oil Industry" 
03/12/1998 
Gerrit van der Laan, Daresbury Laboratory 

"Xray Magnetic Circular Dichroism" 
08/12/1998 
David Cobden, Oersted Institute, Copenhagen 

"Onedimensional electrons in carbon nanotubes" 
10/12/1998 
Nicola Wilkin, Birmingham 

"A Quantum Liquid of Vortices?" 
28/01/1999 
Dr. Oleg Zaboronskii, Warwick, Math 

"Burgers turbulence" 
04/02/1999 
Dr. John Dixon, Warwick, Physics 

"Critical Currents in YBaCu" 
11/02/1999 
Nick Barton and Jim Hague, Journal Club: Warwick University 

 
25/02/1999 
Dr. Igor Smolyarenko, Cambridge 

"Singular Response in Disordered Fermi Liquid" 
04/03/1999 
Professor John Cardy, Oxford 

"Multiscaling in critical systems with quenched disorder" 
09/03/1999 
Dr. Alexei Ivanov, Cambridge 

"Relaxation Kinetics of Weakly Interacting Bosons below T_{c}" 
11/03/1999 
Dr. Robert Smith, Birmingham 

 
29/04/1999 
Julie Staunton, Warwick 

"Spin fluctuations in metals from Ab Initio calculations" 
06/05/1999 
Don Paul, Warwick 

 
13/05/1999 
Yang Chen, Imperial College London 

"Fredholm Determinants as Linear Statistics" 
20/05/1999 
Ben Simons, Cambridge 

"Random Sublattice Models and Dirty Dwave Superconductivity" 
27/05/1999 
Rex Godby, York 

"Electronic Exchange and Correlation in Excited States of Real Materials" 
14/09/1999 
George Rowlands, Warwick 

"Diffusion as a measure of Chaos" 
21/10/1999 
Nic Shannon, University of MadisonWisconsin, USA 

"XPS signatures of exotic states" 
04/11/1999 
Alex Savchenko, University of Exeter 

"Resonant tunneling through localised states in GaAs nanostructures" 
18/11/1999 
Phillip Russel, Bath University 

"Controlling light using photonic crystals" 
25/11/1999 
Vikram Tripathi, Cambridge 

 
09/12/1999 
Noah Linden, Dept of Math, Bristol 

"Quantum Entanglement" 
13/01/2000 
Sam Edwards, Cambridge 

"Equations for stress in granular materials" 
20/01/2000 
Robert MacKay, Math, University of Warwick 

"Persistence of spectral projections and Quantum breathers" 
27/01/2000 
Boris Mouzykantskii, University of Warwick 

"Level correlations in a quantum dot with surface scattering" 
03/02/2000 
Stephen Roberts and Neil Bowler, Journal Club, University of Warwick 

 
10/02/2000 
Simon Crampin, Bath 

"Scanning tunneling spectroscopy: what can be learnt about electron interactions?" 
17/02/2000 
Igor Yurkevich, Birmingham 

"New sigmamodel description of the dirty superconductors" 
24/02/2000 
Patrick Unwin, Chemistry, University of Warwick 

"Probing the Ins and Outs of Interfaces" 
02/03/2000 
Fabian Essler, Warwick 

 
09/03/2000 
Peter Fulde, Max Plank Institute, Dresden, Germany 

"Mesoscopic quantum effects in cold glasses" 
04/05/2000 
Thomas Fink, Cambridge 

"The Physics of Prions" 
11/05/2000 
Nick d'Ambrumenil, Warwick 

"Issues in the Theory of the Fractional Quantum Hall Effect" 
18/05/2000 
Andrew Millar, Biology, Warwick 

"Time for Living; the molecular construction of Biological clocks" 
25/05/2000 
Bruce Alphenaar, Hitachi, Cambridge 

"Magnetoresistance of Ferromagnetically Contacted Carbon Nanotubes" 
08/06/2000 
Andrei Chubukov, UWMadison, USA 

"Manybody games: two's company, three's a crowd" 
12/10/2000 
Leonid Levitov, MIT USA 

"Energy excitations in localized electron systems and glasses" 
19/10/2000 
Adrian Wilson, Physics, Warwick 

"Towards a virtual biopsy" 
26/10/2000 
Raphael Blumenfeld, Physics, Warwick 

"Stress transmission in a new state of granular matter" 
02/11/2000 
Michael Wilkinson, Math, Open University 

"Spectral Correlations: Understanding Oscillatory Contributions" 
09/11/2000 
Martin Evans, University of Edinburgh 

"Nonequilibrium Statistical Mechanics and qdeformed Oscillators" 
16/11/2000 
Patrick Warren, Unilever 

"Charged Soft Matter" 
23/11/2000 
David MacKay, University of Cambridge 

"How to Communicate Reliably: the State of the Art in ErrorCorrecting Codes" 
07/12/2000 
1. Yuri Adamov and 2. Roddy Vann,
Journal Club , University of Warwick 

1. "Fermi gas responce to the time dependent perturbation"
2. "Does BerkBreizman theory help us to understand nuclear fusion plasmas?" 
11/01/2001 
Victor Zhitomirsky, Oxford 

"Enhanced excitonic interactions in doped quantum wells" 
25/01/2001 
Aleksei Tsvelik, Oxford 

"Mechanisms for Ferrimagnetism and Incommensuration in 1D Quantum Systems" 
15/02/2001 
Yanmin Li, TokyoMitsubishi International ank 

"Let's have a better smile (Physics and Mathematics in Finance)" 
22/02/2001 
Carla Molteni, Cambridge 

"Pressureinduced structural transformations in semiconductor clusters by first principles molecular dynamics" 
01/03/2001 
1. Andrea Parisi and 2. Patricia Faisca,
Journal Club: University of Warwick 

1. "Ultrasound emission from advancing cracks"
2. "Protein folding 'in virtuo'" 
26/04/2001 
Jim Hague, Warwick 

"Electrons, phonons and the bandMott transition" 
10/05/2001 
Julie Staunton, Warwick 

"Can improvements to DMFT be useful for band structure theorists?" 
17/05/2001 
Victor Gurarie, Oxford 

"Quantum Hall Transition in the classical limit" 
31/05/2001 
Andrew Green, Cambridge 

"The Information Capacity of Frequency Division Multiplexed Optical Fibres: A Field Theoretical Approach" 
07/06/2001 
Igor Aleiner, Stony Brook USA 

"Interaction corrections at intermediate temperatures" 
04/10/2001 
Martin Freer, Birmingham 

"Nuclear Clusters and Molecules" 
11/10/2001 
Oleg Petrenko, Warwick 

"Frustrated magnets in magnetic field" 
18/10/2001 
Ellak Somfai, Warwick 

"Wave propagation in granular force chains" 
25/10/2001 
Ben Sauer, Sussex 

"Testing time reversal symmetry using YbF" 
01/11/2001 
Dr Chris Hooley, Birmingham 

"Quantum dots: what becomes of the Kondo effect when the voltage gets large?" 
06/11/2001 
Professor Greg Houseman, University of Leeds 

"Viscous Flow Problems in the Geological Context" 
08/11/2001 
Dr Mark Bocquet, Warwick 

"Finitetemperature perturbation theory for quasi1D spin1/2 Heisenberg antiferromagnets" 
15/11/2001 
Professor Richard Jones, Sheffield 

 
22/11/2001 
Professor Mike Allen, Warwick & Bristol 

"Theory and simulation of inhomogeneous liquid crystals" 
28/11/2001 
Professor A A Nersesyan, Trieste 

"Quantum critical points in strongly correlated 1D systems" 
06/12/2001 
Dr Martin Howard, Leiden 

"Accurate cell division in E. Coli: How a bacterium knows where its middle is" 
28/04/2002 
Robin Catchpole, RGO 

Active Galaxies with the HST 
02/05/2002 
Prof Vladimir Falko, University of Lancaster 

"Spinorbit coupling, spin relaxation and quantum transport in lateral semiconductor dots" 
16/05/2002 
Dr Julian Poulter, Mahidol University, Thailand 

"Polydisperse distributions of homogenous droplet growth" 
23/05/2002 
Dr Carl Dettman, Bristol University 

 
30/05/2002 
Dr Matthew Foulkes, Imperial College 

"Quantum Monte Carlo Studies of Exchange and Correlation in Solids" 
06/06/2002 
Prof Jim Matthew, University of York 

 
13/06/2002 
Dr Peter Thomas, Dept. of Engineering, University of Warwick 

"Sandstorms in fishtanks; Granular Spiral Patterns Under Rotating Fluids" 
20/06/2002 
Dr Justin Molloy, University of York 

"The molecular mechanism of motor protein, myosin V, studied with optical tweezers" 
03/10/2002 
Professor Robin Ball, University of Warwick 

"Theory of Diffusion Controlled Growth" 
10/10/2002 
Dr Mikhail E Portnoi, University of Exeter 

"The twodimensional exciton revisited" 
17/10/2002 
Dr Tobias Brandes, UMIST 

"Coherence, decoherence and chaos in coupled quantum dots" 
24/10/2002 
Dr Rudolf A. R?mer, University of Warwick 

"The AharonovBohm effect for an exciton" 
Cancelled due to illness.
31/10/2002 
Dr Chris J Mellor, University of Nottingham 

Transport in Magneticallyinduced Wigner Solids 
06/11/2002 
Prof Greg Houseman, University of Leeds 

Viscous Flow Problems in the Geological Context 
Important: this talk will take place as part of the Physics Colloquia.
14/11/2002 
Dr Annette Plaut, University of Exeter 

"MagnetoPhotoluminescence of the Correlated FewElectron Ground State of Electrostatically Confined Quantum Dots" 
21/11/2002 
Dr Andrew Armour, University of Nottingham 

"Micromechanical systems in the quantum regime" 
28/11/2002 
Professor Sharon Glotzer, University of Michigan, U.S.A. 

"Supercooled Liquids as Nanostructured Complex Fluids: Insights from Molecular Simulations" 
05/12/2002 
Prof Igor Lerner, University of Birmingham 

"Tunneling anomaly in the absence of equilibrium" 
16/01/2003 
Dr Uwe Grimm, The Open University, Milton Keynes 

"Mathematics and Physics of Quasicrystals" 
Cancelled due to illness.
23/01/2003 
Prof Mike Gillan, University College London 

"Using firstprinciples quantum mechanics to probe the Earth's deep interior" 
The venue will be in Room P564 in the Physics Department.
30/01/2003 
1. Chris Westbrook and 2. David Goode,
University of Warwick 

1. "A theory of aggregation through differential sedimentation"
2. report on ongoing work 
20 minute talk
06/02/2003 
Elke Thonnes, University of Warwick 

"Perfect simulation" 
13/02/2003 
Macleans Ndawana, University of Warwick 

"The Anderson model of localization with scalefree disorder" 
20 minute talk
13/02/2003 
Evelyn Bain, University of Warwick 

"Protein motion in biological membranes" 
20 minute talk
20/02/2003 
Dr Andrzej Eilmes, UMIST and Jagiellonian University Krakow 

"Dielectric properties of polymers  microelectrostatic calculations" 
27/02/2003 
Dr Ville Uski, Royal Halloway 

"Onset of localization in disordered conductors" 
The venue will be in Room P564 in the Physics Department.
06/03/2003 
Dr Juan P Garrahan, Oxford University 

"Microscopic explanation of dynamical and thermal properties of glass formers" 
13/03/2003 
Professor Angus MacKinnon, Imperial College London 

"Nanomechanical Systems in the Quantum Regime" 
24/04/2003 
Prof. George Rowlands, University of Warwick 

Micromagnetics, the old meets the new 
01/05/2003 
Dr Uwe Grimm, The Open University, Milton Keynes 

Mathematics and Physics of Quasicrystals 
Rescheduled talk for the one cancelled in Spring term.
22/05/2003 
Prof. Wim J. Briels, Universiteit Twente 

Simulation of membranes, worms and entangled polymers. 
05/06/2003 
Prof. Colin Lambert, University of Lancaster 

Electron transport in carbon nanotubes 
1pm in P564
Note the rescheduling from Monday to Thursday and from P564 to PS128 (physics main building).
02/10/2003 
Prof. Jorge Stephany, Universidad Simon Bolivar 

Photon number oscillations, the WKB approximation and phase space distributions 
This talk is being scheduled together with the CSC.
14/11/2003 
Dr Herve Isambert, CNRS, Institut Curie, Paris 

RNA folding and unfolding pathways 
Note that the talk is scheduled for 11:00 o'clock on Friday in P336.
04/12/2003 
Dr. Wolfram Just, Queen Mary College 

Modelling of fast chaotic degrees of freedom by suitable stochastic forces 
08/01/2004 
Dr. Jingsong He, University of Warwick 

Twopeak solitons in nonlinear waves 
This will happen in the PS common room at 01:30pm.
29/01/2004 
Dr. Roddy Vann, University of Warwick 

Frequency splitting and sweeping in tokamaks 
17/02/2004 
Graeme Boswell, University of Glamorgan 

Percolation and habitat fragmentation 
19/02/2004 
HD Dr. Bodo Huckestein, RuhrUniversität Bochum 

How does the quantum Hall effect vanish at low magnetic fields? 
20 minute talk
04/03/2004 
Greg Sutcliffe, University of Warwick 

Simulations of Defect Dynamics in Liquid Crystals 
20 minute talk
11/03/2004 
Dr. Sergei Ostanin, Department of Earth Sciences, University College L 

Ab initio calculations of lattice dynamics: from the harmonic approximation to stochastic vibrations 
08/04/2004 
Prof. Igor Aleiner, Columbia Physics Department 

Zeroresistance state and related phenomena in acdriven twodimensional electron gas 
The talk is scheduled for P520A/B.
20/04/2004 
Gregory Falkovich, Weizmann Institute, Israel 

Rain, fractal measures and entropy production 
This talk is scheduled together with the Mathematics "Quantum Theory" seminar and will take place in B3.03 of the new Mathematics building at 15:00  17:00.
29/04/2004 
D. Robert Daniels, University of Warwick 

Some physics of haemaglobin fibers 
20/05/2004 
Dr. Hermann SchulzBaldes, TU Berlin, Germany 

Weak disorder expansion of localization lengths for quasi1D strips 
bm
28/10/2004 
Alan Usher, University of Exeter 

Millikelvin magnetometry studies of the quantum Hall effects 
04/11/2004 
John Inglesfield, University of Wales Cardiff 

Embedding approach to the electronic structure and conductance of large molecules 
The seminar has been shifted to 14:0015:00.
18/11/2004 
Stephen R Elliott, University of Cambridge 

Vibrational excitations in disordered systems: localization, IoffeRegal crossover and the Boson peak 
25/11/2004 
Philipp Cain, Technische Universitaet Chemnitz 

Renormalization group approach to the integer quantum Hall effect 
This seminar is being held together with the CSC seminar series at 3 p.m. Meeting point: Mathematics Common Room 3:00 p.m., starting with tea. Talks are at 3:10 pm in room B3.03 of the Mathematics Institute.
There will be no official lunchtime seminar. However, the First International Symposium on Cellular Computing takes place December 0910th 2004. More information can be found at http://www2.warwick.ac.uk/fac/sci/csc/centre/events/cellcom04/.
Read talk
Read talk
cancelled due to illness
Read talk
Seminar has been moved so that we avoid a clash with the lectureship appointment lectures on Thursday, April 21st 2005.
28/04/2005 
John Dixon, University of Warwick 

Ionic Solitary Wave Propagation along Actin Filaments 
12/05/2005 
Philip Moriarty, University of Nottingham 

Patterns, Pathways, and Transport in Nanoparticle Arrays 
Cancelled due to diary problems! We are working on having a new speaker in place!
26/05/2005 
Peter Cummings, Nanomaterials Theory Institute, Oak Ridge National 

Computational and Theoretical Nanoscience 
09/06/2005 
Lorna Stimson, Helsinki University of Technology 

Using molecular dynamics simulations to investigate the possibility of a membranemediated mechanism for general anaesthesia 
Joint seminar with CSC
06/10/2005 
Ulrich Kleinekathoefer, Technische Universit?t Chemnitz 

Dynamics in molecular systems: classical and quantum mechanically 
03/11/2005 
Keith Slevin, Osaka University 

Anderson Localisation: The Numerical Approach 
 Thu 15 Sep '05
 H. Scott Dumas, University of Cincinnati (Maths)
What's so great about KAM theory?
 Thu 29 Sep '05
 Karl Skau, Surrey (Maths) and visiting @Warwick
A Kinetic Model for Processivity of MyosinV
 Thu 6 Oct '05
 Ulrich Kleinekathoefer, Technische Universit?t Chemnitz
Dynamics in molecular systems: classical and quantum mechanically
 Joint Seminar with CSC Thu 13 Oct '05
 ChrisKriton Skylaris, Physical & Theoretical Chemistry, Oxford
The ONETEP program for accurate linearscaling density functional calculations for nanotechnology, biophysics and condensed matter.
 Thu 20 Oct '05
 Mike Allen, University of Warwick
Soft matter simulations  a few scary thoughts
 Thu 27 Oct '05
 George Rowlands, University of Warwick.
Dynamics of Nanomagnet arrays
 Thu 3 Nov '05
 Keith Slevin, Osaka University
Is there an Anderson transition below 2D?
CANCELLED
 Thu 10 Nov '05
 John Chalker, University of Oxford,
Electron Interactions and Transport Between Coupled Quantum Hall Edges
 Thu 17 Nov '05
 Ellak Somfai, University of Oxford
Scale invariance and jamming in granular systems
 Thu 24 Nov '05
 Frank Pinski, Unversity of Cincinatti & sabbatical @Warwick, and
Andrew Stuart, University Of Warwick.
Sampling in Path Space With Application to Vacancy Diffusion.
 Thu 1 Dec '05
 Philip Moriarty, University of Nottingham,
Patterns, Pathways, and Transport in Nanoparticle Arrays
nda
 Thu 5 Jan '06
 David Thouless, UW Seattle
Dynamics of quantized vortices in superfluids and superconductors
 Thu 12 Jan '06
 Simon Crampin, University of Bath
 Thu 19 Jan '06
 Sasha Gogolin, ICSTM,
Full Counting Statistics
 Thu 26 Jan '06
 Tim Softley, Oxford
Interaction of highly excited Rydberg molecules with a metal surface
 Thu 2 Feb '06
 Dario Alfe, UCL
Recent developments in first principles techniques: Melting curve of MgO under Earth's mantle conditions and wateroxide interactions from quantum Monte Carlo calculations
 Thu 16 Feb '06
 David Mukamel, Weizmann Institute
Traffic jams and ordering far from thermal equilibrium
 Thu 23 Feb '06
 David Cheung, University of Warwick,
Density Functional Theory of Liquid Crystal Colloids and Defects
 Thu 2 Mar '06
 Ray Dupree, Warwick
Some new angles on solid state NMR
 Thu 9 Mar '06
 Henning Schomerus, Lancaster
A simple model for nonexponential relaxation of complex quantum systems
 Fri 31 Mar '06
 Professor Barry Narod, University of British Columbia
Magnetic permeability and domain structure, and their influence on fluxgate magnetometer noise.
 Mon 3 Apr '06
 Johannes Voit, German Savings Banks Association, Berlin
What The Einstein Year Did Not Discuss: Brownian Motion And Financial Markets
 Thu 20 Apr '06
 Debabrata Panja, Institute for Theoretical Physics, Universiteit van Amsterdam
Passage Times for Unbiased Polymer Translocation through a Narrow Pore
 Thu 27 Apr '06
 Malte Grosche, RHUL
Low temperature ferromagnetism and helical order  quantum phase transitions in NbFe2
 Thu 4 May '06
 Mike Sutherland, Cavendish Laboratory
Thermal transport as a probe of low energy excitations in the highTc cuprates
 Thu 11 May '06
 Peter Littlewood, Cavendish Laboratory
Nonequilibrium BEC of polaritons
 Thu 18 May '06
 Nic Shannon, Bristol
Nematic order in square lattice frustrated ferromagnets
 Thu 25 May '06
 Mike Moore, Manchester
Is there a thermodynamic glass transition?
 Tue 6 Jun '06
 David Wu, Colorado School of Mines
Kinetics and Pathways of Viral SelfAssembly: Lightscattering and Modeling of Human Papillomavirus Capsids
 Tue 27 Jun '06
 Ralf Bulla, Universitaet Augsburg, Germany
The numerical renormalization group method for quantum impurity systems
 Wed 30 Aug '06
 Keith Slevin, Osaka University
Anderson Localisation and the Anderson Transition
 Thu 7 Sep '06
 David Cheung, Warwick.
Simulation and theory of complex fluids
 Thu 5 Oct '06
 Jonathan Keeling, Cavendish
"Minimal excitation states of electrons in 1D wires"
 Thu 12 Oct '06
 Mark Ancliff, Warwick
"A representationtheoretic approach to disordered transport in onedimension"
Ian Hughes, Warwick
"Magnetic Ordering in Heavy Rare Earth Metals from ab initio calculations"
 Thu 19 Oct '06
 Andy Monkman, Durham
Can we unravel the light generation mechanism in a polymer LED?
 Thu 26 Oct '06
 Vadim Cheianov, Lancaster
Ballistic Transport in Graphene
 Thu 2 Nov '06
 Nigel Cooper, Cavendish
Vortex Lattices and Vortex Liquids in Atomic Bose Gases
 Thu 9 Nov '06
 Ralph Kenna, Coventry
Scaling Relations for Logarithmic Corrections
Secondorder phase transitions are classified according to the values of critical exponents. In the 1960^Òs, four famous scaling relations linking these exponents were discovered and these are of fundamental importance in statistical physics and related areas. In certain important circumstances the transitional behaviour is modified by socalled logarithmic corrections. These are subtle effects that cloud the leading terms, and characterize the system. Here it shown that these logarithmic terms are also interrelated, just as the leading terms are, and a set of new scaling relations for them is presented. Consequently, a longstanding debate is automatically resolved. This concerns the Ising model in two dimensions, an old favourite for statistical physicists. Adding disorder to this system changes its critical behaviour but the precise nature of these changes has been under question. The new scaling relations relate hitherto elusive exponents characterizing these changes to well established ones in an unambiguous and precise fashion. This is one demonstration of how the new scaling relations are expected to become an important tool in modern statistical mechanics.
 Thu 16 Nov '06
 Lloyd Demetrius, Harvard
Quantum metabolism and allometric relations in biology
 Thu 23 Nov '06
 Yan Fyodorov, Nottingham
Singlechannel scattering as a sensitive probe of the Anderson localization
 Thu 30 Nov '06
 Doug Cleaver, Sheffield Hallam
Using entropy to generate 3dperiodic soft matter
 Thu 7 Dec '06
 Toshiki Mima, Keio University
Molecular Dynamics Simulation of Transport Properties of Confined Liquid Crystals
 Thu 18 Jan '07
 Norio Kikuchi, Analytic Theory of DNA Condensation
 Thu 25 Jan '07
 Wilton Catford, Surrey
Nuclear Shell Breaking in ^{12}Be
 Thu 1 Feb '07
 Jonathan Yates, Cavendish
Efficient Abinitio Calculation of the Anomalous Hall Conductivity by Wannier Interpolation
I will present an efficient firstprinciples approach to calculate Fermi surface averages and spectral properties of solids, and use it to compute the anomalous Hall conductivity and magnetooptical absorption of iron. The method works by mapping the lowenergy electronic structure onto a set of maximallylocalised, partially occupied Wannier functions. In this way we can calculate Brillouin zone averages at abinitio accuracy with only tightbinding cost.
 Thu 8 Feb '07
 Ard Louis, Oxford
Hydrodynamic interactions and Brownian forces in colloidal suspensions: Coarsegraining over time and lengthscales
We describe in detail how to implement a coarsegrained hybrid Molecular Dynamics and Stochastic Rotation Dynamics simulation technique that captures the combined effects of Brownian and hydrodynamic forces in colloidal suspensions. The importance of carefully tuning the simulation parameters to correctly resolve the multiple time and lengthscales of this problem is emphasised[1,2]. Applications to be discussed include: The effect of hydrodynamics and Brownian fluctuations on percolation and aggregation, the sedimentation of colloidal particles, dynamic lane formation in driven suspensions, and the direct simulation of a microfluidic nanopump. [1] Hydrodynamic interactions and Brownian forces in colloidal suspensions: Coarsegraining over time and lengthscales, J.T. Padding and A.A. Louis, Phys. Rev. E 74, 031402 (2006) [2] Hydrodynamic and Brownian Fluctuations in Sedimenting Suspensions J.T. Padding and A. A. Louis, Phys. Rev. Lett. 93, 220601 (2004)
 Thu 15 Feb '07
 Yuri Sherkunov, Warwick
CasimirPolder and van der Waals interaction between excited and groundstate atoms
 Thu 22 Feb '07
 Jim Hague, Loughborough
Superlight bipolarons in the presence of strong Coulomb repulsion
Recent angleresolved photoemission spectroscopy (ARPES) has identified that a finiterange Fröhlich electronphonon interaction (EPI) with caxis polarized optical phonons is important in cuprate superconductors. Thus, it is interesting to determine what sorts of phononmediated unconventional pairing are possible. To this end, schemes that can cope beyond the limited range of applicability for BCS theory need to be developed. In this talk, I describe results from two major extensions: A highorder weakcoupling expansion (extended Eliashberg theory) and an advanced continuoustime quantum MonteCarlo algorithm (CTQMC). I first demonstrate how expanding the electron selfenergy to second order in the binding energy leads to the conclusion that dwave superconductivity can be mediated by phonons, with Coulomb repulsion stabilising d over s wave pairing [1]. Eliashberg theories may be used for moderate electronphonon couplings, however, to determine exact results at intermediate to strong couplings we use a CTQMC algorithm that we recently developed for studying bipolarons (two electrons bound by phonons). The CTQMC algorithm is excellent for investigating unconventional pairing possibilities. We have investigated the effective mass and binding energies of singlet and triplet realspace bipolarons on a number of lattice types [2,3]. We demonstrate that bipolarons can be simultaneously small and light, provided that suitable conditions on the electronphonon and electronelectron interaction and lattice type are satisfied. Such light small bipolarons are a necessary precursor to hightemperature BoseEinstein Condensation (BEC) in solids. The light bipolaron mass is shown to be universal in systems made of triangular plaquettes, due to a novel crablike motion. We discuss the conditions under which such particles may form a BEC with an exceptionally high transition temperature [2].
 Thu 1 March '07
 Joerg Wunderlich, Hitachi/Cavendish
Extraordinary magnetoresistance effects and local control of magnetocrystalline anisotropy in (Ga,Mn)As devices
The family of (III,Mn)V ferromagnetic semiconductors offers unique opportunities for exploring the integration of two frontier areas in information technology: spintronics and nanoelectronics. In my talk I will address two novel phenomena recently observed in micro and nanostructures patterned from this ferromagnetic material with strong spinorbit coupling, the Coulomb blockade Anisotropic Magnetoresistance effect and lithographically controlled magnetocrystalline anisotropy applied for current induced spin transfertorque domain wall propagation.
 Thu 8 March '07
 Stephen Jenkins, Department of Chemistry, Cambridge
Surface Stability and Electronic Structure of HalfMetallic NiMnSb and MnSb
Halfmetallic materials, which exhibit complete spinpolarisation at the Fermi level, hold great promise for device applications in the field of spintronics. Amongst a variety of drawbacks, however, one of the most pressing is a lack of knowledge concerning surface and interface properties. In particular, the relationship between the stability of different surface/interface phases and the presence of surface/interface localised electronic states is of great importance. In this talk, I will describe density functional calculations aimed at elucidating this relationship for various surfaces of the halfmetallic semiHeusler alloy NiMnSb and the halfmetallic zincblende phase of MnSb.
 Thu 26 April '07
 Mark Miller, Department of Chemistry, Cambridge
"Reversible gelation and dynamical arrest of dipolar colloids"
 Thu 3rd May '07
 Andrew Armour, Nottingham
Dynamics of nanomechanical singleelectron transistors
 Thu 10th May '07
 Marshall Stoneham, UCL
Dynamics at the Nanoscale: Making sense of scent
Even in 1900, a few leading scientists doubted atoms existed, despite the new chemical industry underpinned by atomistic ideas. In 1970, some leading figures in electronics still claimed they had no need to believe in electrons, despite the new microelectronics. Today, we readily accept that matter is quantised (atoms), as is charge (electrons). Yet many are still reluctant to see a role for the quantum phenomena recognised in Planck's constant. But when physical sciences address the nanoscale, there is no way to avoid such quantum phenomena. Even for the biosciences, it is clear that nature must exploit quantum behaviour even at ambient temperatures. One striking result is that you probably have a quantum sensor in your nose.
 Thu 17th May '07 Theoretical Colloquium
 09:00 "From semiconductor microstructures to atom traps: nonequilibrium and dynamics of quantum condensates",
Marzena Szymanska, Oxford 09:30 “Magnetic and elementary excitations in novel superconductors: feedback of the unconventional order parameter"
Ilya Eremin, MaxPlanck Institut fuer PKS, Dresden 10:00 “High temperature superconductivity from first principles”
Martin Lueders, Daresbury Laboratory 10.45 “Geometric modelling: structure and function”
Stephen Wells, Arizona State University 11:15 “Electron storage, selectivity, and control in oxide nanostructures”
Peter Sushko, University College London 11:45 “Firstprinciples prediction of material properties”
Jonathan Yates, University of Cambridge
 Thu 24th May '07
 Christoph Sohrmann, Warwick
Compressibility patterns in the integer quantum Hall effect
 Thu 31st May '07
 Ben Simons, Cavendish
Theory of epidermal maintenance: of mice and men
One of the main challenges in biology is to understand how stem cells and their progeny function to maintain adult tissue. Recent developments in genetic labelling provide access to a wealth of clone fate data at single cell resolution over time scales long enough to address reliably the kinetics of cell fate in mouse epidermis. Drawing on these results, we show that epidermal maintenance conforms to a remarkably simple dynamics involving a critical (GaltonWatson) birthdeath process, overturning a paradigm longheld in the scientific literature. Motivated by these findings, we argue that the mouse model can be straightforwardly incorporated into a generalised theory which provides a role for a quiescent stem cell population, and identifies the mechanism of pattern formation seen in human epidermis as an arrested spinodal decomposition. We discuss the implications of these results on the general mechanism of tissue maintenance, repair, and tumour formation.
 Thu 6th June '07
 Nicholas Curro, Los Alamos
Unexpected Manifestations for quantum criticality in the heavy fermion superconductor CeCoIn_{5}
CeCoIn_{5} may well be the drosophilia for correlated electron physics. This heavy fermion superconductor sits on the border of antiferromagnetism, is a dwave superconductor, and possibly exhibits a novel inhomogeneous superconducting state in high magnetic fields. NMR measurements have revealed a subtle interplay of antiferromagnetism and superconductivity in this system, and may lead to a new paradigm for quantum critical phenomena in Kondo lattices.