Schellenberger A, Schmidt KP (2024)
Publication Language: English
Publication Type: Journal article
Publication year: 2024
Book Volume: 7
Article Number: 038
Journal Issue: 3
DOI: 10.21468/SciPostPhysCore.7.3.038
We investigate classes of interacting quantum spin systems in a single-mode cavity with a Dicke coupling, as a paradigmatic example of strongly correlated light-matter systems. Coming from the limit of weak light-matter couplings and large number of matter entities, we map the relevant low-energy sector of a broad class of models in the nonsuperradiant phases onto the exactly solvable Dicke model. We apply the outcomes to the Dicke-Ising model as a paradigmatic example [1,2], in agreement with results obtained by mean-field theory [2]. We further accompany and verify our findings with finite-size calculations, using exact diagonalization and the series expansion method pcst++ [3].
APA:
Schellenberger, A., & Schmidt, K.P. (2024). (Almost) everything is a Dicke model - Mapping non-superradiant correlated light-matter systems to the exactly solvable Dicke model. SciPost Physics Core, 7(3). https://doi.org/10.21468/SciPostPhysCore.7.3.038
MLA:
Schellenberger, Andreas, and Kai Phillip Schmidt. "(Almost) everything is a Dicke model - Mapping non-superradiant correlated light-matter systems to the exactly solvable Dicke model." SciPost Physics Core 7.3 (2024).
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