2003/09/03 by P. Lougovski, Pavel Lougovski, F. Casagrande +5 · 22 citations
Chemistry · Computer Science · Mathematics · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Chemistry #Classical mechanics #Dissipative system #Field (mathematics) #Master equation #Mathematics #Mesoscopic physics #Phase space #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum decoherence #Quantum electrodynamics #Quantum mechanics #Statistical physics #Steady state (chemistry) #Unitary state #quant-ph
paper · pdf · doi:10.1103/physreva.69.023812
published in Physical Review A 69(2) (American Physical Society) · 9 pages, 16 figures. Submitted for publication
arxiv created 2003/09/03 · openalex publication_date 2004/02/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the dynamics of a micromaser where the pumping atoms are strongly driven by a resonant classical field during their transit through the cavity mode. We derive a master equation for this strongly driven micromaser, involving the contributions of the unitary atom-field interactions and the dissipative effects of a thermal bath. We find analytical solutions for the temporal evolution and the steady state of this system by means of phase-space techniques, providing an unusual solvable model of an open quantum system, including pumping and decoherence. We derive closed expressions for all relevant expectation values, describing the statistics of the cavity field and the detected atomic levels. The transient regime shows the buildup of mixtures of mesoscopic fields evolving towards a super-Poissonian steady-state field that, nevertheless, yields atomic correlations that exhibit stronger nonclassical features than the conventional micromaser.