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ABSTRACT:
SUBMITTER: Brennecke F
PROVIDER: S-EPMC3718128 | biostudies-literature | 2013 Jul
REPOSITORIES: biostudies-literature
Brennecke Ferdinand F Mottl Rafael R Baumann Kristian K Landig Renate R Donner Tobias T Esslinger Tilman T
Proceedings of the National Academy of Sciences of the United States of America 20130701 29
We experimentally study the influence of dissipation on the driven Dicke quantum phase transition, realized by coupling external degrees of freedom of a Bose-Einstein condensate to the light field of a high-finesse optical cavity. The cavity provides a natural dissipation channel, which gives rise to vacuum-induced fluctuations and allows us to observe density fluctuations of the gas in real-time. We monitor the divergence of these fluctuations over two orders of magnitude while approaching the ...[more]