Certifying multi-mode light-matter interaction in lossy resonators
- URL: http://arxiv.org/abs/2107.11775v4
- Date: Thu, 16 Mar 2023 15:37:27 GMT
- Title: Certifying multi-mode light-matter interaction in lossy resonators
- Authors: Dominik Lentrodt, Oliver Diekmann, Christoph H. Keitel, Stefan Rotter
and J\"org Evers
- Abstract summary: We develop a certification criterion for multi-mode effects in lossy resonators.
It is based on a witness observable, and neither requires a fitting procedure nor a Markov approximation.
We demonstrate that such multi-mode effects are important for understanding previous experiments in X-ray cavity QED with M"ossbauer nuclei.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Quantum models based on few-mode Master equations have been a central tool in
the study of resonator quantum electrodynamics, extending the seminal
single-mode Jaynes-Cummings model to include loss and multiple modes. Despite
their broad application range, previous approaches within this framework have
either relied on a Markov approximation or a fitting procedure. By combining
ideas from pseudomode and quasinormal mode theory, we develop a certification
criterion for multi-mode effects in lossy resonators. It is based on a witness
observable, and neither requires a fitting procedure nor a Markov
approximation. Using the resulting criterion, we demonstrate that such
multi-mode effects are important for understanding previous experiments in
X-ray cavity QED with M\"ossbauer nuclei and that they allow one to tune the
nuclear ensemble properties.
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