John Brennan
In 2013, John completed a BSc (Double Hons) in pure mathematics and mathematical physics at Maynooth university. After that, he pursued a PhD in Theoretical physics at Maynooth which he completed in 2018. His research involved the use and development of numerical methods to study topological quantum phases and their applications in topological quantum computation. John then worked as a lecturer at Maynooth until January 2020 where he lectured undergraduate courses in vector calculus, complex analysis, fluid mechanics and computational physics. John then joined the Irish Centre for High-End Computing in March, 2020 as a Research Computational Scientist. Here, he worked on the PRACE WP8 QuantEx project which looked at developing scalable, tensor network based, quantum circuit simulation tools for exa-scale platforms. He joined the QuSys group in Trinity College Dublin as a postdoc in March 2022.
Papers:
QXTools: A Julia framework for distributed quantum circuit simulation, J. Brennan, L. O’Riordan, K. Hanley, M. Doyle, M. Allalen, D. Brayford, L. Iapichino, N. Moran, (2022) Journal of Open Source Software, 7(70), 3711
Tensor Network Circuit Simulation at Exascale, J. Brennan, M. Allalen, D. Brayford, K. Hanley, L. Iapichino, L. O’Riordan, M. Doyle, N. Moran, (2021) IEEE/ACM Second International Workshop on Quantum Computing Software (QCS), 2021, pp. 20-26
Deploying Containerized QuantEx Quantum Simulation Software on HPC Systems, D. Brayford, M. Allalen, L. Iapichino, J. Brennan, N. Moran, L. O'Riordan, K. Hanley, (2021) 3rd International Workshop on Containers and New Orchestration Paradigms for Isolated Environments in HPC (CANOPIE-HPC), 2021, pp. 1-9
Gradient descent with momentum --- to accelerate or to super-accelerate?, Nakerst G., Brennan J., Haque M., (2020) arXiv:2001.06472
The Kitaev honeycomb model on surfaces of genus g > 2, Brennan J. and Vala J, (2018) New J. Phys. 20 053023
Lattice Defects in the Kitaev Honeycomb Model, Brennan J. and Vala J., (2016) J. Phys. Chem. A 120 3326–34