Related papers: Linear response theory for cavity QED materials

Linear response theory for cavity QED materials

URL: http://arxiv.org/abs/2406.11957v2
Date: Wed, 19 Jun 2024 08:56:16 GMT
Title: Linear response theory for cavity QED materials
Authors: Juan Román-Roche, Álvaro Gómez-León, Fernando Luis, David Zueco,
Abstract summary: We derive closed formulas for various responses of both the cavity and the matter. We discover novel excitations in quantum magnets, where the cavity binds magnon pairs into localized states.
Score: 41.94295877935867
License: http://creativecommons.org/licenses/by/4.0/
Abstract: We present a rigorous framework for linear response theory in cavity QED materials. Our approach leverages the collective coupling between light and matter, drawing parallels with large-N theories in quantum field theory. We derive closed formulas for various responses of both the cavity and the matter. Our theory is validated by recovering established results for the Dicke model and the Quantum Hall Effect. Additionally, we discover novel excitations in quantum magnets, where the cavity binds magnon pairs into localized states.

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