Spatiotemporal coherence of non-equilibrium multimode photon condensates
Quantum Gases
2016-10-24 v3
Abstract
We report on the observation of quantum coherence of Bose-Einstein condensed photons in an optically-pumped, dye-filled microcavity. We find that coherence is long-range in space and time above condensation threshold, but short-range below threshold, compatible with thermal-equilibrium theory. Far above threshold, the condensate is no longer at thermal equilibrium and is fragmented over non-degenerate, spatially overlapping modes. A microscopic theory including cavity loss, molecular structure and relaxation shows that this multimode condensation is similar to multimode lasing induced by imperfect gain clamping.
Cite
@article{arxiv.1510.05562,
title = {Spatiotemporal coherence of non-equilibrium multimode photon condensates},
author = {Jakov Marelic and Lydia F. Zajiczek and Henry J. Hesten and Kon H. Leung and Edward Y. X. Ong and Florian Mintert and Robert A. Nyman},
journal= {arXiv preprint arXiv:1510.05562},
year = {2016}
}
Comments
Updates in response to referee comments