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..
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2022 |
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Erschienen: |
2022 |
Enthalten in: |
Zur Gesamtaufnahme - volume:12 |
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Enthalten in: |
SciPost Physics - 12(2022), 3, p 094 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Christian Høj Johansen, Johannes Lang, Andrea Morales, Alexander Baumgärtner, Tobias Donner, Francesco Piazza [VerfasserIn] |
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Links: |
doi.org [kostenfrei] |
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Themen: |
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doi: |
10.21468/SciPostPhys.12.3.094 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
DOAJ075359456 |
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