Driven-dissipative many-body systems with mixed power-law interactions: Bistabilities and temperature-driven nonequilibrium phase transitions

Šibalić, N; Wade, CG; Adams, CS; Weatherill, KJ; Pohl, T

Abstract

We investigate the nonequilibrium dynamics of a driven-dissipative spin ensemble with competing power-law interactions. We demonstrate that dynamical phase transitions as well as bistabilities can emerge for asymptotic van der Waals interactions, but critically rely on the presence of a slower decaying potential core. Upon introducing random particle motion, we show that a finite gas temperature can drive a phase transition with regards to the spin degree of freedom and eventually leads to mean-field behavior in the high-temperature limit. Our work reconciles contrasting observations of recent experiments with Rydberg atoms in the cold-gas and hot-vapor domain, and introduces an efficient theoretical framework in the latter regime.

Citation

Šibalić, N., Wade, C., Adams, C., Weatherill, K., & Pohl, T. (2016). Driven-dissipative many-body systems with mixed power-law interactions: Bistabilities and temperature-driven nonequilibrium phase transitions. Physical Review A, 94(1), Article 011401. https://doi.org/10.1103/physreva.94.011401

• Journal Article Type: Article
• Acceptance Date: Jun 22, 2016
• Online Publication Date: Jul 14, 2016
• Publication Date: Jul 14, 2016
• Deposit Date: Dec 9, 2015
• Publicly Available Date: Jul 15, 2016
• Journal: Physical Review A
• Print ISSN: 2469-9926
• Electronic ISSN: 2469-9934
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 94
• Issue: 1
• Article Number: 011401
• DOI: https://doi.org/10.1103/physreva.94.011401
• Public URL: https://durham-repository.worktribe.com/output/1394213
• Related Public URLs: http://arxiv.org/abs/1512.02123