45 citations · 60 across the 8 of their papers we have counts for
8 papers
Scalable Spin Squeezing in Power-Law Interacting XXZ Models with Disorder
Samuel E. Begg, Bishal K. Ghosh, Chong Zu +2
While spin squeezing has been traditionally considered in all-to-all interacting models, recent works have shown that it can also occur in systems with power-law interactions, enab…
Control of dynamical phase transitions and non-ergodic relaxation via spinor phases
J. O. Austin-Harris, P. Sigdel, C. Binegar +3
Utilizing ultracold spinor gases as large-scale, many-body quantum simulation platforms, we establish a toolbox for the precise control, characterization, and detection of nonequil…
Lattice-enabled detection of spin-dependent three-body interactions
C. Binegar, J. O. Austin-Harris, S. E. Begg +3
We present the experimental detection of coherent three-body interactions, often masked by stronger two-body effects, through nonequilibrium spin dynamics induced by controllably q…
Dark Soliton Formation as a Dark-State Phase Transition in a Dissipative Superfluid Josephson Junction Chain
Robbe Ceulemans, Samuel E. Begg, Matthew J. Davis +1
We identify and characterize a first-order dark-state phase transition between a discrete dark soliton and a uniform superfluid in a Bose-Hubbard chain with a single lossy site. Us…
Nonequilibrium Critical Scaling of a Squeezing Phase Transition
Arman Duha, S. E. Begg, Thomas Bilitewski
We investigate phase transitions in the nonequilibrium dynamics of power-law interacting spin-1/2 bilayer XXZ models, which have recently been shown to allow generation of entangle…
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…
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…
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…