Time-periodic driving of a bath-coupled open quantum gas of light
We study the frequency-resolved density response of a photon Bose-Einstein condensate coupled to a bath of dye molecules by time-periodic driving. By monitoring the photon number dynamics for different drive frequencies, we obtain the spectral response of the condensate in a phase-sensitive way. We...
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| Main Authors: | , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
17 July, 2025
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| In: |
Physical review letters
Year: 2025, Volume: 135, Issue: 3, Pages: 1-7 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/922g-1fng |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/922g-1fng Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/922g-1fng 
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| Author Notes: | Andris Erglis, Alexander Sazhin, Frank Vewinger, Martin Weitz, Stefan Yoshi Buhmann, and Julian Schmitt |
| Summary: | We study the frequency-resolved density response of a photon Bose-Einstein condensate coupled to a bath of dye molecules by time-periodic driving. By monitoring the photon number dynamics for different drive frequencies, we obtain the spectral response of the condensate in a phase-sensitive way. We find that as the photon number increases, the response of the coupled condensate-bath system transitions from overdamped to resonant behavior, indicating a transition from closed to open system dynamics. Our spectroscopy method paves the way for studies of collective excitations in complex driven-dissipative systems. |
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| Item Description: | Gesehen am 08.12.2025 |
| Physical Description: | Online Resource |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/922g-1fng |