Driven-dissipative many-body systems with mixed power-law interactions: Bistabilities and temperature-driven non-equilibrium phase transitions
| Autor: | Šibalić, Nikola, Wade, Christopher G., Adams, Charles S., Weatherill, Kevin J., Pohl, Thomas |
|---|---|
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Physical Review A 94, 011401(R) (2016) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.94.011401 |
| Popis: | We investigate the non-equilibrium 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 behaviour in the high-temperature limit. Our work reconciles contrasting observations of recent experiments with Rydberg atoms in the cold-gas and hot-vapour domain, and introduces an efficient theoretical framework in the latter regime. Comment: 5 pages, 5 figures |
| Databáze: | arXiv |
| Externí odkaz: |
|