Theory of Fano effect in cavity quantum electrodynamics
arXiv:2011.06245 · doi:10.1103/PhysRevResearch.3.013037
Abstract
We propose a Markovian quantum master equation that can describe the Fano effect directly, by assuming a standard cavity quantum electrodynamics system. The framework allows us to generalize the Fano formula, applicable over the weak and strong coupling regimes with pure dephasing. A formulation of its emission spectrum is also given in a consistent manner. We then find that the interference responsible for the Fano effect is robust against pure dephasing. This is counterintuitive because the impact of interference is, in general, severely reduced by decoherence processes. Our approach thus provides a basis for theoretical treatments of the Fano effect and new insights into the quantum interference in open quantum systems.
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Cited by in corpus (6)
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- Topologically protected subradiant cavity polaritons through linewidth narrowing enabled by dissipationless edge states
- Time-resolved physical spectrum in cavity quantum electrodynamics
- Fano effect induced giant and robust enhancement of photon correlations in cavity QED systems
- Quasinormal mode as a foundational framework for all electromagnetic Fano resonances
- Polariton-induced Purcell effects via a reduced semiclassical electrodynamics approach