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Research News

A Spin Entanglement Witness for Quantum Gravity - Is Gravity a Quantum Force?

Understanding gravity in the framework of quantum mechanics is one of the great challenges in modern physics. Along this line, a prime question is to find whether gravity is a quantum entity subject to the rules of quantum mechanics. It is fair to say that there are no feasible ideas yet to test the quantum coherent behaviour of gravity directly in a laboratory experiment. In a recent paper, Gavin Morley and colleagues introduce an idea for such a test based on the principle that two objects cannot be entangled without a quantum mediator.

Tue 21 November 2017, 17:55 | Tags: Research

First planet found by NGTS - it's a monster!

New research, led by Dan Bayliss and Peter Wheatley, has identified an unusual planet NGTS-1b - the largest planet compared to the size of its companion star ever discovered in the universe.

Dan Bayliss, lead author of the research, commented: "The discovery of NGTS-1b was a complete surprise to us - such massive planets were not thought to exist around such small stars. This is the first exoplanet we have found with our new NGTS facility and we are already challenging the received wisdom of how planets form."

Peter Wheatley added, “Having worked for almost a decade to develop NGTS, it is thrilling to see it picking out new and unexpected types of planets."

Tue 31 October 2017, 18:25 | Tags: Research, Faculty of Science

Gold origin confirmed with first ever neutron star gravitational wave sighting

Gold’s origin in the Universe has finally been confirmed, after a gravitational wave source was seen and heard for the first time ever by an international collaboration of researchers, with astronomers at the University of Warwick playing a leading role.

Tue 17 October 2017, 15:50 | Tags: Research

Mid-infrared light emission > 3 um wavelength from tensile strained GeSn microdisks

Direct bandgap photoluminescence in the 3–5 um wavelength window is demonstrated from GeSn microdisks, suggesting that GeSn alloys are well suited for mid-infrared integrated gas sensors on Si chips.

Mon 16 October 2017, 14:58 | Tags: Research

ATLAS hunting second Higgs boson

After the discovery of the Higgs boson in 2012 a key question is whether it is the only one. The minimal supersymmetric standard model (MSSM) includes five physical Higgs bosons, three of them neutral. ATLAS has just published a search for a second neutral one decaying to tau pairs, covering a wide mass range above that of the discovered one using data collected in the years 2015 and 2016. This is the most sensitve search for such an MSSM Higgs yet.

Mon 25 September 2017, 10:32 | Tags: Research

Temperature-Dependent Photoluminescence Characteristics of GeSn Epitaxial Layers

We propose a suitable explanation for Germanium Tin epitaxial heterostructures temperature-dependent photoluminescence that is based upon the so far disregarded optical activity of dislocations.

Wed 13 September 2017, 10:02 | Tags: Research

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