Phase diffusion in a Bose-Einstein condensate of light

A.-W. de Leeuw, E. C. I. van der Wurff, R. A. Duine, and H. T. C. Stoof
Phys. Rev. A 90, 043627 – Published 23 October 2014

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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  • Received 11 June 2014

DOI:https://doi.org/10.1103/PhysRevA.90.043627

©2014 American Physical Society

Authors & Affiliations

A.-W. de Leeuw*, E. C. I. van der Wurff, R. A. Duine, and H. T. C. Stoof

  • Institute for Theoretical Physics and Center for Extreme Matter and Emergent Phenomena, Utrecht University, Leuvenlaan 4, 3584 CE Utrecht, The Netherlands

  • *a.deleeuw1@uu.nl

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Issue

Vol. 90, Iss. 4 — October 2014

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