Fluctuation-Dissipation Relation for a Bose-Einstein Condensate of Photons
Fluctuation-Dissipation Relation for a Bose-Einstein Condensate of Photons
View/Date of Publication
20.01.2023Publisher
American Physical Society (APS)Metadata
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Citable Link (Handle URI) 
https://hdl.handle.net/20.500.11811/10743
Abstract
For equilibrium systems, the magnitude of thermal fluctuations is closely linked to the dissipative response to external perturbations. This fluctuation-dissipation relation has been described for material particles in a wide range of fields. Here, we experimentally probe the relation between the number fluctuations and the response function for a Bose-Einstein condensate of photons coupled to a dye reservoir, demonstrating the fluctuation-dissipation relation for a quantum gas of light. The observed agreement of the scale factor with the environment temperature both directly confirms the thermal nature of the optical condensate and demonstrates the validity of the fluctuation-dissipation theorem for a Bose-Einstein condensate.
Subjects
Bose-Einstein condensates, Fluctuations & noise, Quantum optics
Classification (DDC)
530 PhysikPublished in
Physical Review Letters, 2023, vol. 130, Art. 033602, pp. 1-6First Publication
https://doi.org/10.1103/PhysRevLett.130.033602Öztürk, Fahri Emre; Vewinger, Frank; Weitz, Martin; Schmitt, Julian: Fluctuation-Dissipation Relation for a Bose-Einstein Condensate of Photons. In: Physical Review Letters. 2023, vol. 130, Art. 033602, 1-6.
Online-Ausgabe in bonndoc: https://hdl.handle.net/20.500.11811/10743
Online-Ausgabe in bonndoc: https://hdl.handle.net/20.500.11811/10743
@article{handle:20.500.11811/10743,
author = {{Fahri Emre Öztürk} and {Frank Vewinger} and {Martin Weitz} and {Julian Schmitt}},
title = {Fluctuation-Dissipation Relation for a Bose-Einstein Condensate of Photons},
publisher = {American Physical Society (APS)},
year = 2023,
month = jan,
journal = {Physical Review Letters},
volume = 2023, vol. 130,
number = Art. 033602,
pages = 1--6,
note = {For equilibrium systems, the magnitude of thermal fluctuations is closely linked to the dissipative response to external perturbations. This fluctuation-dissipation relation has been described for material particles in a wide range of fields. Here, we experimentally probe the relation between the number fluctuations and the response function for a Bose-Einstein condensate of photons coupled to a dye reservoir, demonstrating the fluctuation-dissipation relation for a quantum gas of light. The observed agreement of the scale factor with the environment temperature both directly confirms the thermal nature of the optical condensate and demonstrates the validity of the fluctuation-dissipation theorem for a Bose-Einstein condensate.},
url = {https://hdl.handle.net/20.500.11811/10743}
}
author = {{Fahri Emre Öztürk} and {Frank Vewinger} and {Martin Weitz} and {Julian Schmitt}},
title = {Fluctuation-Dissipation Relation for a Bose-Einstein Condensate of Photons},
publisher = {American Physical Society (APS)},
year = 2023,
month = jan,
journal = {Physical Review Letters},
volume = 2023, vol. 130,
number = Art. 033602,
pages = 1--6,
note = {For equilibrium systems, the magnitude of thermal fluctuations is closely linked to the dissipative response to external perturbations. This fluctuation-dissipation relation has been described for material particles in a wide range of fields. Here, we experimentally probe the relation between the number fluctuations and the response function for a Bose-Einstein condensate of photons coupled to a dye reservoir, demonstrating the fluctuation-dissipation relation for a quantum gas of light. The observed agreement of the scale factor with the environment temperature both directly confirms the thermal nature of the optical condensate and demonstrates the validity of the fluctuation-dissipation theorem for a Bose-Einstein condensate.},
url = {https://hdl.handle.net/20.500.11811/10743}
}
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