Statistical physics of bose-einstein-condensed light in a dye microcavity

Jan Klaers; Julian Schmitt; Tobias Damm; Frank Vewinger; Martin Weitz

doi:10.1103/PhysRevLett.108.160403

Statistical physics of bose-einstein-condensed light in a dye microcavity

Jan Klaers^*
, Julian Schmitt
, Tobias Damm
, Frank Vewinger
, Martin Weitz

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

91 Citations (Scopus)

Abstract

We theoretically analyze the temperature behavior of paraxial light in thermal equilibrium with a dye-filled optical microcavity. At low temperatures the photon gas undergoes Bose-Einstein condensation, and the photon number in the cavity ground state becomes macroscopic with respect to the total photon number. Owing to a grand-canonical excitation exchange between the photon gas and the dye molecule reservoir, a regime with unusually large fluctuations of the condensate number is predicted for this system that is not observed in present atomic physics Bose-Einstein condensation experiments.

Original language	English
Article number	160403
Journal	Physical review letters
Volume	108
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevLett.108.160403
Publication status	Published - 20 Apr 2012
Externally published	Yes

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10.1103/PhysRevLett.108.160403

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AU - Weitz, Martin

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N2 - We theoretically analyze the temperature behavior of paraxial light in thermal equilibrium with a dye-filled optical microcavity. At low temperatures the photon gas undergoes Bose-Einstein condensation, and the photon number in the cavity ground state becomes macroscopic with respect to the total photon number. Owing to a grand-canonical excitation exchange between the photon gas and the dye molecule reservoir, a regime with unusually large fluctuations of the condensate number is predicted for this system that is not observed in present atomic physics Bose-Einstein condensation experiments.

AB - We theoretically analyze the temperature behavior of paraxial light in thermal equilibrium with a dye-filled optical microcavity. At low temperatures the photon gas undergoes Bose-Einstein condensation, and the photon number in the cavity ground state becomes macroscopic with respect to the total photon number. Owing to a grand-canonical excitation exchange between the photon gas and the dye molecule reservoir, a regime with unusually large fluctuations of the condensate number is predicted for this system that is not observed in present atomic physics Bose-Einstein condensation experiments.

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Statistical physics of bose-einstein-condensed light in a dye microcavity

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