2018/12/06 by Diego Barberena, Robert J. Lewis-Swan, James K. Thompson +2 · 1 citation
Chemistry · Computer Science · Physics and Astronomy · #Atom (system on chip) #Atomic physics #Chemistry #Cold Atom Physics and Bose-Einstein Condensates #Dipole #Dissipative system #Field (mathematics) #Laser #Laser linewidth #Optical cavity #Oscillation (cell signaling) #Physics #Quantum #Quantum Information and Cryptography #Quantum dynamics #Quantum mechanics #Spectroscopy and Quantum Chemical Studies #Transient (computer programming) #quant-ph
paper · pdf · doi:10.1103/physreva.99.053411
published as Phys. Rev. A 99, 053411 (2019) · main text: 15 pages, 12 figures; appendix: 3 pages, 2 figures
arxiv created 2018/12/06 · openalex publication_date 2019/05/14 · arxiv updated 2019/05/22 · openalex created_date 2019/06/27 · openalex updated_date 2026/08/06
We study the quantum dynamics of many-body arrays of two-level atoms in a driven cavity subject to collective decay and interactions mediated by the cavity field. We work in the bad cavity limit accessible, for example, using long-lived electronic clock states of alkaline-earth atoms, for which the bare atomic linewidth is much less than the cavity linewidth. In the absence of interactions, our system reduces to previously studied models of collective fluorescence. We show that while interactions do not qualitatively change the steady-state properties they lead to a drastic change in the dynamical properties. We find that, for some intervals of driving strengths, the system shows two very distinct types of transient behaviors that depend on the initial state of the system. In particular, there is a parameter regime where the system features oscillatory dynamics with a period of oscillation that becomes much shorter than the duration of the overall transient dynamics as the atom number increases. We use both mean-field and exact numerical calculations of the quantum system to investigate the dynamics.