Multimode-polariton superradiance via Floquet engineering
- We consider an ensemble of ultracold bosonic atoms within a near-planar cavity, driven by a far detuned laser whose phase is modulated at a frequency comparable to the transverse cavity mode spacing. We show that a strong, dispersive atom-photon coupling can be reached for many transverse cavity modes at once. The resulting Floquet polaritons involve a superposition of a set of cavity modes with a density excitation of the atomic cloud. The mutual interactions between these modes lead to distinct avoided crossings between the polaritons. Increasing the laser drive intensity, a low-lying multimode Floquet polariton softens and eventually becomes undamped, corresponding to the transition to a superradiant, self-organized phase. We demonstrate the stability of the stationary state for a broad range of parameters.
Author: | Christian H. Johansen, Johannes Lang, Andrea Morales, Alexander Baumgärtner, Tobias Donner, Francesco PiazzaORCiDGND |
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URN: | urn:nbn:de:bvb:384-opus4-1084113 |
Frontdoor URL | https://opus.bibliothek.uni-augsburg.de/opus4/108411 |
ISSN: | 2542-4653OPAC |
Parent Title (English): | SciPost Physics |
Publisher: | Stichting SciPost |
Type: | Article |
Language: | English |
Year of first Publication: | 2022 |
Publishing Institution: | Universität Augsburg |
Release Date: | 2023/10/16 |
Tag: | General Physics and Astronomy |
Volume: | 12 |
Issue: | 3 |
First Page: | 094 |
DOI: | https://doi.org/10.21468/scipostphys.12.3.094 |
Institutes: | Mathematisch-Naturwissenschaftlich-Technische Fakultät |
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik | |
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik / Lehrstuhl für Theoretische Physik III | |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Licence (German): | CC-BY 4.0: Creative Commons: Namensnennung (mit Print on Demand) |