2013/05/01 by Arne L. Grimsmo, A L Grimsmo, A. S. Parkins +1
Computer Science · Physics and Astronomy · #Atom (system on chip) #Atomic physics #Cavity quantum electrodynamics #Cold Atom Physics and Bose-Einstein Condensates #Coupling (piping) #Dissipation #Dissipative system #Field (mathematics) #Jaynes–Cummings model #Nonlinear system #Open quantum system #Photon #Physics #Quantum #Quantum Information and Cryptography #Quantum electrodynamics #Quantum mechanics #Quantum optics #Semiclassical physics #Strong Light-Matter Interactions #quant-ph
paper · pdf · doi:10.1088/0953-4075/46/22/224012
published as J. Phys. B, 46, 224012, 2014 · 25 pages, 16 figures
arxiv created 2013/05/01 · openalex publication_date 2013/11/07 · arxiv updated 2014/08/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study a generalized Dicke model, as recently realized in an atomic quantum gas experiment, describing the collective interaction of N two-level atoms with a single cavity mode. The model takes account of dissipation of the cavity field, and includes a non-linear atom-photon coupling, not present in the conventional Dicke model. We extend previous theoretical investigations of a semiclassical model by including all quantum effects and considering finite atom number N . Our results show good agreement between quantum expectation values and the semiclassical model as N is increased, but also show exotic behaviour for the corresponding quantum state as the non-linear atom-photon coupling is varied.