2020/03/31 by C. A. Downing, Juan Camilo López Carreño, J. C. López Carreño +4 · 1 citation
Computer Science · Physics and Astronomy · #Condensed matter physics #Coupling (piping) #Coupling strength #Dissipative system #Limiting #Materials science #Mechanical and Optical Resonators #Phenomenology (philosophy) #Photon #Physics #Population #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum mechanics #Statistical physics #cond-mat.mes-hall
paper · pdf · doi:10.1103/physreva.102.013723
published as Phys. Rev. A 102, 013723 (2020) · 22 pages, 16 figures
openalex publication_date 2020/07/23 · arxiv created 2020/07/24 · arxiv updated 2020/07/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study a prototypical model of two coupled two-level systems, where the competition between coherent and dissipative coupling gives rise to a rich phenomenology. In particular, we analyze the case of asymmetric coupling, as well as the limiting case of chiral (or one-way) coupling. We investigate various quantum optical properties of the system, including its steady-state populations, power spectrum, and second-order correlation functions, and outline the characteristic features which emerge in each quantity as one sweeps through the nontrivial landscape of effective complex couplings. Most importantly, we reveal instances of population trapping, unexpected spectral features, and strong emission correlations.