Dynamical stabilization by vacuum fluctuations in a cavity: Resonant electron scattering in the ultrastrong light-matter coupling regime

• URL: http://arxiv.org/abs/2207.02077v2
• Date: Wed, 12 Oct 2022 14:49:20 GMT
• Title: Dynamical stabilization by vacuum fluctuations in a cavity: Resonant electron scattering in the ultrastrong light-matter coupling regime
• Authors: D. A. Zezyulin, S. A. Kolodny, O. V. Kibis, I. V. Tokatly, I. V. Iorsh
• Abstract summary: Theory of electron scattering by a short-range repulsive potential in a cavity. Resonant nonelastic scattering of the electron accompanied by emission of a cavity photon.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We developed a theory of electron scattering by a short-range repulsive potential in a cavity. In the regime of ultrastrong electron coupling to the cavity electromagnetic field, the vacuum fluctuations of the field result in the dynamical stabilization of a quasistationary polariton state confined in the core of the repulsive potential. When the energy of a free electron coincides with the energy of the confined state, the extremely efficient resonant nonelastic scattering of the electron accompanied by emission of a cavity photon appears. This effect is discussed as a basis for possible free-electron sources of nonclassical light.

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