Dynamics of nonequilibrium Dicke models
By M. J. Bhaseen, J. Mayoh, B. Simons, Jonathan Keeling. 2011
145 citations recorded by the source corpus.
Motivated by experiments observing self-organization of cold atoms in optical cavities, we investigate the collective dynamics of the associated nonequilibrium Dicke model. The model displays a rich semiclassical phase diagram of long-time attractors including distinct superradiant fixed points, bistable and multistable coexistence phases, and regimes of persistent oscillations. We explore the intrinsic time scales for reaching these asymptotic states and discuss the implications for finite-duration experiments. On the basis of a semiclassical analysis of the effective Dicke model, we find that sweep measurements over 200 ms may be required in order to access the asymptotic regime. We briefly comment on the corrections that may arise due to quantum fluctuations and states outside of the effective two-level Dicke model description.
Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/c180f1f29b374ae25e4d2580e97ec0e0ff66f594
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
- A. Parkins
- K. Arnold
- Chern Lee
- Zhiqiang Zhang
- Ravi Kumar
- M. D. Barrett
- Stuart J. Masson
Citations in the corpus
- Nonequilibrium phase transition in a spin-1 Dicke model (2016, background): “In this case the individual atomic excitations are given by spin 2 operators and the only changes to the final Hamiltonian are: a change of sign to λ± due to a change in sign of relevant matrix elements, a change of sign of ωz due to a change in sign of the Lande g-factor, gF , and the replacement N”