Physics – Quantum Physics
Scientific paper
2010-02-19
Physical Review B 81, 245419 (2010)
Physics
Quantum Physics
10 pages, 7 figures
Scientific paper
The influence of pure dephasing on the dynamics of the coupling between a two-level atom and a cavity mode is systematically addressed. We have derived an effective atom-cavity coupling rate that is shown to be a key parameter in the physics of the problem, allowing to generalize the known expression for the Purcell factor to the case of broad emitters, and to define strategies to optimize the performances of broad emitters-based single photon sources. Moreover, pure dephasing is shown to be able to restore lasing in presence of detuning, a further demonstration that decoherence can be seen as a fundamental resource in solid-state cavity quantum electrodynamics, offering appealing perspectives in the context of advanced nano-photonic devices.
Andreani Lucio Claudio
Auffeves Alexia
Gerace Dario
Gérard Jean-Marc
Poizat J.-Ph.
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