Universal nonequilibrium properties of dissipative Rydberg gases
We investigate the out-of-equilibrium behavior of a dissipative gas of Rydberg atoms that features a dynamical transition between two stationary states characterized by different excitation densities. We determine the structure and properties of the phase diagram and identify the universality class...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Published: |
American Physical Society
2014
|
| Online Access: | https://eprints.nottingham.ac.uk/34722/ |
| _version_ | 1848794920717910016 |
|---|---|
| author | Marcuzzi, Matteo Levi, Emanuele Diehl, Sebastian Garrahan, Juan P. Lesanovsky, Igor |
| author_facet | Marcuzzi, Matteo Levi, Emanuele Diehl, Sebastian Garrahan, Juan P. Lesanovsky, Igor |
| author_sort | Marcuzzi, Matteo |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We investigate the out-of-equilibrium behavior of a dissipative gas of Rydberg atoms that features a dynamical transition between two stationary states characterized by different excitation densities. We determine the structure and properties of the phase diagram and identify the universality class of the transition, both for the statics and the dynamics. We show that the proper dynamical order parameter is in fact not the excitation density and find evidence that the dynamical transition is in the “model A” universality class; i.e., it features a nontrivial Z2 symmetry and a dynamics with nonconserved order parameter. This sheds light on some relevant and observable aspects of dynamical transitions in Rydberg gases. In particular it permits a quantitative understanding of a recent experiment [C. Carr, Phys. Rev. Lett. 111, 113901 (2013)] which observed bistable behavior as well as power-law scaling of the relaxation time. The latter emerges not due to critical slowing down in the vicinity of a second order transition, but from the nonequilibrium dynamics near a so-called spinodal line. |
| first_indexed | 2025-11-14T19:23:52Z |
| format | Article |
| id | nottingham-34722 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:23:52Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-347222020-05-04T16:57:13Z https://eprints.nottingham.ac.uk/34722/ Universal nonequilibrium properties of dissipative Rydberg gases Marcuzzi, Matteo Levi, Emanuele Diehl, Sebastian Garrahan, Juan P. Lesanovsky, Igor We investigate the out-of-equilibrium behavior of a dissipative gas of Rydberg atoms that features a dynamical transition between two stationary states characterized by different excitation densities. We determine the structure and properties of the phase diagram and identify the universality class of the transition, both for the statics and the dynamics. We show that the proper dynamical order parameter is in fact not the excitation density and find evidence that the dynamical transition is in the “model A” universality class; i.e., it features a nontrivial Z2 symmetry and a dynamics with nonconserved order parameter. This sheds light on some relevant and observable aspects of dynamical transitions in Rydberg gases. In particular it permits a quantitative understanding of a recent experiment [C. Carr, Phys. Rev. Lett. 111, 113901 (2013)] which observed bistable behavior as well as power-law scaling of the relaxation time. The latter emerges not due to critical slowing down in the vicinity of a second order transition, but from the nonequilibrium dynamics near a so-called spinodal line. American Physical Society 2014-11-21 Article PeerReviewed Marcuzzi, Matteo, Levi, Emanuele, Diehl, Sebastian, Garrahan, Juan P. and Lesanovsky, Igor (2014) Universal nonequilibrium properties of dissipative Rydberg gases. Physical Review Letters, 113 (21). p. 210401. ISSN 1079-7114 http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.113.210401 doi:10.1103/PhysRevLett.113.210401 doi:10.1103/PhysRevLett.113.210401 |
| spellingShingle | Marcuzzi, Matteo Levi, Emanuele Diehl, Sebastian Garrahan, Juan P. Lesanovsky, Igor Universal nonequilibrium properties of dissipative Rydberg gases |
| title | Universal nonequilibrium properties of dissipative Rydberg gases |
| title_full | Universal nonequilibrium properties of dissipative Rydberg gases |
| title_fullStr | Universal nonequilibrium properties of dissipative Rydberg gases |
| title_full_unstemmed | Universal nonequilibrium properties of dissipative Rydberg gases |
| title_short | Universal nonequilibrium properties of dissipative Rydberg gases |
| title_sort | universal nonequilibrium properties of dissipative rydberg gases |
| url | https://eprints.nottingham.ac.uk/34722/ https://eprints.nottingham.ac.uk/34722/ https://eprints.nottingham.ac.uk/34722/ |