Two papers by members of Warwick Quantum were accepted to QIP 2023, the most prestigious conference in Quantum Computing and Quantum Information.

These works provide a methodology for boosting the power of quantum algorithms using deep mathematical tools from additive combinatorics, as well as provide the techniques, tools, and abstractions necessary to answer when classical zero-knowledge protocols remain secure against quantum attacks.

• "Quantum Worst-Case to Average-Case Reductions for All Linear Problems" by Vahid R. Asadi, Alexander Golovnev, Tom Gur, Igor Shinkar, and Sathyawageeswar Subramanian.
• "Post-Quantum Zero Knowledge, Revisited" by Alex Lombardi, Fermi Ma and Nicholas Spooner.

The European Research Council (ERC) has announced that Dr Igor OliveiraLink opens in a new window is among the winners of its prestigious Starting Grant competition. According to the European Research Council: "The funding is worth in total €636 million and is part of the Horizon Europe programme. It will help excellent younger scientists, who have 2 to 7 years’ experience after their PhDs, to launch their own projects, form their teams and pursue their most promising ideas."

Igor OliveiraLink opens in a new window has been awarded a €1.5M ERC Starting grant for a 5-year project entitled "Synergies Between Complexity and Learning". The project aims to exchange ideas and techniques between Complexity Theory and Learning Theory to accelerate progress in both fields, broaden the arsenal of tools available to attack their open problems, as well as to obtain a deeper understanding of the nature of efficient computation and of its logical aspects.

Two projects in Computer Science and Informatics (PE6 panel) in the United Kingdom were awarded ERC Starting Grants in the 2022 round. The press releaseLink opens in a new window contains more information about the ERC funding programme.

We are happy to announce that Prof Christian Ikenmeyer joined the Department of Computer Science and the Warwick Mathematics Institute on October 1st 2022. In his research, he combines ideas and challenges from theoretical computer science, algorithmic algebra, algebraic complexity theory, algebraic geometry, representation theory, and algebraic combinatorics. We welcome him to the department!

We are delighted to announce that the paper "Dynamic Matching with Better-than-2 Approximation in Polylogarithmic Update Time", coauthored by Sayan Bhattacharya and Peter Kiss from the Theory and Foundations Research Division at Warwick, along with Thatchaphol Saranurak (University of Michigan) and David Wajc (Stanford University), has received the best paper award at SODA 2023.

Computing a maximum matching in a graph is a fundamental problem in combinatorial optimisation. The paper considers this problem in a dynamic graph, which keeps changing over time via a sequence of edge insertions and deletions. It was a decade-old open question to decide whether one can beat the performance guarantee of the simple greedy algorithm for this problem (which gives 2 approximation), in a dynamic setting. The paper answers this question in the affirmative, and provides the first efficient dynamic algorithm which can maintain a better-than 2 approximation to the size of the maximum matching in the input graph.

PhD positions are available at the Theory and Foundations group in the Department of Computer Science, University of Warwick, UK. The group works on various aspects of theoretical computer science such as:

* automata and formal languages,
* logic and games,
* algorithmic game theory,
* online and dynamic algorithms,
* sublinear and streaming algorithms,
* parameterized complexity and structural graph theory,
* string algorithms,
* parallel algorithms,
* approximation algorithms,
* combinatorial and graph algorithms,
* random structures and randomized algorithms,
* computational complexity,
* privacy-preserving algorithms, cryptography and quantum computing.

The group has strong ties with the Centre for Discrete Mathematics and its Applications (DIMAP), established in 2007 jointly with Warwick Mathematics Institute and Warwick Business School. Together with DIMAP, the group is one of the leading theory groups in Europe, with regular publications in top international conferences and journals in theoretical computer science.

The Department of Computer Science at Warwick offers an excellent research environment. It was ranked 4th in the latest UK research assessment in Research Excellence Framework (REF) in 2021. The University of Warwick is one of the founding members of the Alan Turing Institute.

The university campus is located on the border of two counties, West Midlands and Warwickshire, is about one hour train ride from London, and 15 minutes from Birmingham International Airport.

The applicants are expected to have a strong background in discrete mathematics, algorithms, or related topics with undergraduate and/or Master's degrees in Computer Science, Mathematics, or related disciplines. The position(s) will be fully funded, and the successful applicant(s) will be receiving a stipend at rate in line with current Research Councils UK rates.

If you are interested in this opening, please send an email to either Dr Sayan Bhattacharya (S.Bhattacharya@warwick.ac.uk) or Dr Tom Gur (Tom.Gur@warwick.ac.uk), with a SINGLE .pdf file containing your CV and the names and email addresses of two references, by 4 November 2022. You are strongly encouraged to informally contact faculty members in the group you might want to work with prior to submitting your application.

Shortlisted candidates will be interviewed informally during the week of 14 November - 18 November, 2022.

List of faculty members in the group:

https://warwick.ac.uk/focs/people/<https://warwick.ac.uk/fac/sci/dcs/research/focs/people/>

Centre for Discrete Mathematics and its Applications:
https://warwick.ac.uk/dimap/<https://warwick.ac.uk/fac/cross_fac/dimap/>

We are delighted to report that Dr Tom Gur (Warwick CS) and Dr Animesh Datta (Warwick Physics) have been awarded an EPSRC New Horizons on "Property Testing for Quantum Engineering". This project aims to bring together computer scientists and physicists towards the end of designing new approaches for fault-tolerant quantum computing.

We're happy to announce that Shuichi Hirahara has joined the department as a Research Fellow.

Shuichi completed his PhD at the University of Tokyo in 2019. He is currently an Associate Professor at the National Institute of Informatics, Tokyo.

Shuichi's primary research area is computational complexity theory. During his stay at Warwick, he will be involved in the activities of a joint project with the University of Oxford on the limits and possibilities of efficient algorithms.

We are happy to announce that Torsten Mütze (left in the picture), assistant professor in the Theory and Foundations Research Division, has won the Best Paper Award at the 47th International Symposium on Mathematical Foundations of Computer Science (MFCS 2022) for the paper "The Hamilton compression of highly symmetric graphs", authored jointly with his student Arturo Merino (TU Berlin; middle) and Petr Gregor (Charles University Prague; right). The paper proposes a new graph parameter that measures the amount of symmetry present in its Hamilton cycles, and it investigates this parameter for a wide range of interesting highly-symmetric graphs. It combines methods from combinatorics, number theory and algebra, and connects the new parameter to several related problems that researchers have studied intensively. The MFCS best paper award is sponsored by the European Association for Theoretical Computer Science.

We are happy to announce that Dr Dmitry Chistikov has been promoted to Associate Professor from 1 April 2022. Since joining Warwick in 2017, Dmitry has made a significant contribution to the department with his research, teaching, and administrative and supportive roles. Many congratulations to Dmitry for all his achievements!