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arXiv · 1406.1403

Phase diffusion in a Bose-Einstein condensate of light

A. -W. de Leeuw·E. C. I. van der Wurff·R. A. Duine·H. T. C. Stoof
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Abstract

We study phase diffusion in a Bose-Einstein condensate of light in a dye-filled optical microcavity, i.e., the spreading of the probability distribution for the condensate phase. To observe this phenomenon, we propose an interference experiment between the condensed photons and an external laser. We determine the average interference patterns, considering quantum and thermal fluctuations as well as dissipative effects due to the dye. Moreover, we show that a representative outcome of individual measurements can be obtained from a stochastic equation for the global phase of the condensate.

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A. -W. de Leeuw, E. C. I. van der Wurff, R. A. Duine, H. T. C. Stoof. 2014-06-05. Phase diffusion in a Bose-Einstein condensate of light. https://doi.org/10.1103/physreva.90.043627

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