Dynamics Near a Photonic Band-Edge: Strong Coupling Effects Beyond
Rotating-Wave Approximation
- URL: http://arxiv.org/abs/2207.13006v1
- Date: Tue, 26 Jul 2022 16:12:19 GMT
- Title: Dynamics Near a Photonic Band-Edge: Strong Coupling Effects Beyond
Rotating-Wave Approximation
- Authors: Matthieu Vanhoecke, Orazio Scarlatella, and Marco Schir\`o
- Abstract summary: We study the dynamics of a quantum emitter coupled to a two-dimensional photonic crystal featuring a finite bandwidth with sharp edges and a Van-Hove singularity.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We study the dynamics of a quantum emitter coupled to a two-dimensional
photonic crystal featuring a finite bandwidth with sharp edges and a Van-Hove
singularity. We study the effect of strong system-bath coupling and
non-Markovianity of the photonic environment using a nonperturbative approach
based on the recently introduced NCA dynamical map for open quantum systems. We
show that several characteristic features of the dynamics near a photonic
band-edge such as the freezing of spontaneous emission and the maximum
light-matter entanglement, get strongly modified in presence of
counter-rotating terms in the system-bath coupling, beyond the rotating-wave
approximation. Furthermore, by computing the spectral function of the quantum
emitter we comment on the role played by atom-photon bound-state and show that
this acquires a much larger lifetime once the rotating-wave approximation is
relaxed.
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