Photon-photon correlation of condensed light in a microcavity
Photon-photon correlation of condensed light in a microcavity
Tang, Y.; Shekhar Dhar, H.; Oulton, R. F.; Nyman, R. A.; Mintert, F.
Abstract
The study of temporal coherence in a Bose-Einstein condensate of photons can be challenging, especially in the presence of correlations between the photonic modes. In this work, we use a microscopic, multimode model of photonic condensation inside a dye-filled microcavity and the quantum regression theorem, to derive an analytical expression for the equation of motion of the photon-photon correlation function. This allows us to derive the coherence time of the photonic modes and identify a nonmonotonic dependence of the temporal coherence of the condensed light with the cutoff frequency of the microcavity.
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Contribution to WWW
https://arxiv.org/abs/2310.16604
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Permalink: https://www.hzdr.de/publications/Publ-38435