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cond-mat.quant-gas2024
Observation of ergodicity breaking and quantum many-body scars in spinor gases
J. O. Austin-Harris, I. Rana, S. E. Begg +3
We experimentally and theoretically demonstrate spinor gases driven by spin-flopping fields are excellent platforms for investigating ergodicity breaking and quantum scarring. We o…
cond-mat.stat-mech2024
Quantum Criticality in Open Quantum Spin Chains with Nonreciprocity
Samuel E. Begg, Ryo Hanai
We investigate the impact of nonreciprocity on universality and critical phenomena in open quantum interacting many-body systems. Nonreciprocal open quantum systems often have an e…
cond-mat.quant-gas2024
Nonequilibrium Transport in a Superfluid Josephson Junction Chain: Is There Negative Differential Conductivity?
Samuel E. Begg, Matthew J. Davis, Matthew T. Reeves
We consider the far-from-equilibrium quantum transport dynamics in a 1D Josephson junction chain of multi-mode Bose-Einstein condensates. We develop a theoretical model to examine…