3 papers
quant-ph2026
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…
cond-mat.quant-gas2025
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…
quant-ph2025
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…