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Langevin Approach to Quantum Optics with Molecules

2018/12/31 by Michael Reitz, Christian Sommer, Claudiu Genes · 84 citations
Physics and Astronomy · #Dissipative system #Fluorescence #Förster resonance energy transfer #Laser #Mechanical and Optical Resonators #Molecular physics #Optical cavity #Optics #Physics #Polariton #Quantum #Quantum Electrodynamics and Casimir Effect #Quantum mechanics #Quantum optics #Resonance fluorescence #Strong Light-Matter Interactions #quant-ph

paper · pdf · doi:10.1103/physrevlett.122.203602

published in Physical Review Letters 122(20), 203602 (American Physical Society)

openalex publication_date 2019/05/20 · arxiv created 2020/04/24 · arxiv updated 2020/04/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We investigate the interaction between light and molecular systems modeled as quantum emitters coupled to a multitude of vibrational modes via a Holstein-type interaction. We follow a quantum Langevin equations approach that allows for analytical derivations of absorption and fluorescence profiles of molecules driven by classical fields or coupled to quantized optical modes. We retrieve analytical expressions for the modification of the radiative emission branching ratio in the Purcell regime and for the asymmetric cavity transmission associated with dissipative cross talk between upper and lower polaritons in the strong coupling regime. We also characterize the Förster resonance energy transfer process between donor-acceptor molecules mediated by the vacuum or by a cavity mode.

Citations