%0 Generic %1 Schmitt2013Observation %A Schmitt, Julian %A Damm, Tobias %A Dung, David %A Vewinger, Frank %A Klaers, Jan %A Weitz, Martin %D 2013 %K bec %T Observation of grand-canonical number statistics in a photon Bose-Einstein condensate %U http://arxiv.org/abs/1311.6634 %X We report measurements of particle number correlations and fluctuations of a photon Bose-Einstein condensate in a dye microcavity using a Hanbury Brown-Twiss experiment. The photon gas is coupled to a reservoir of molecular excitations, which serve both as heat bath and particle reservoir to realize grand-canonical conditions. For large reservoirs, we observe strong number fluctuations of order of the total particle number extending deep into the condensed phase. Our results demonstrate that Bose-Einstein condensation under grand-canonical ensemble conditions does not imply second-order coherence.

@misc{Schmitt2013Observation, abstract = {We report measurements of particle number correlations and fluctuations of a photon Bose-Einstein condensate in a dye microcavity using a Hanbury Brown-Twiss experiment. The photon gas is coupled to a reservoir of molecular excitations, which serve both as heat bath and particle reservoir to realize grand-canonical conditions. For large reservoirs, we observe strong number fluctuations of order of the total particle number extending deep into the condensed phase. Our results demonstrate that Bose-Einstein condensation under grand-canonical ensemble conditions does not imply second-order coherence.}, added-at = {2014-01-09T15:14:33.000+0100}, archiveprefix = {arXiv}, author = {Schmitt, Julian and Damm, Tobias and Dung, David and Vewinger, Frank and Klaers, Jan and Weitz, Martin}, biburl = {https://www.bibsonomy.org/bibtex/261a14bca31dc1486506dbf6b01cb1099/jaspervh}, citeulike-article-id = {12819477}, citeulike-linkout-0 = {http://arxiv.org/abs/1311.6634}, citeulike-linkout-1 = {http://arxiv.org/pdf/1311.6634}, day = 26, eprint = {1311.6634}, interhash = {969823931827fb5eab633fbc04196ea5}, intrahash = {61a14bca31dc1486506dbf6b01cb1099}, keywords = {bec}, month = nov, posted-at = {2013-12-04 15:25:34}, priority = {2}, timestamp = {2014-01-09T15:14:33.000+0100}, title = {Observation of grand-canonical number statistics in a photon Bose-Einstein condensate}, url = {http://arxiv.org/abs/1311.6634}, year = 2013 }