3 papers
quant-ph2026
Onset of Ergodicity Across Scales on a Digital Quantum Processor
Faisal Alam, Marcos Crichigno, Elizabeth Crosson +7
Understanding how isolated quantum many-body systems thermalize remains a central question in modern physics. We study the onset of ergodicity in a two-dimensional disordered Heise…
quant-ph2025
Benchmarking a wide range of optimisers for solving the Fermi-Hubbard model using the variational quantum eigensolver
Benjamin D. M. Jones, Lana Mineh, Ashley Montanaro
We numerically benchmark 30 optimisers on 372 instances of the variational quantum eigensolver for solving the Fermi-Hubbard system with the Hamiltonian variational ansatz. We rank…
quant-ph2024
Testing multipartite productness is easier than testing bipartite productness
Benjamin D. M. Jones, Ashley Montanaro
We prove a lower bound on the number of copies needed to test the property of a multipartite quantum state being product across some bipartition (i.e. not genuinely multipartite en…