2009/09/30 by P. Kaer, P. Kær, T. R. Nielsen +7 · 3 citations
Engineering · Physics and Astronomy · #Photonic and Optical Devices #Semiconductor Quantum Structures and Devices #Strong Light-Matter Interactions #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevlett.104.157401
4 pages, 4 figures, published in Physical Review Letters, changes according to referees comments, comments are welcome
openalex publication_date 2010/04/13 · arxiv created 2010/04/28 · arxiv updated 2010/04/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We investigate the influence of electron-phonon interactions on the dynamical properties of a quantum-dot-cavity QED system. We show that non-markovian effects in the phonon reservoir lead to strong changes in the dynamics, arising from photon-assisted dephasing processes, not present in markovian treatments. A pronounced consequence is the emergence of a phonon induced spectral asymmetry when detuning the cavity from the quantum-dot resonance. The asymmetry can only be explained when considering the polaritonic quasiparticle nature of the quantum-dot-cavity system. Furthermore, a temperature induced reduction of the light-matter coupling strength is found to be relevant in interpreting experimental data, especially in the strong coupling regime.