dorsal/arxiv
View SchemaBogoliubov dispersion relation for a "photon fluid": Is this a superfluid?
| Authors | Raymond Y. Chiao |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9908060 |
| URL | https://arxiv.org/abs/quant-ph/9908060 |
| DOI | 10.1016/S0030-4018(99)00615-X |
Abstract
We discuss the possibility that photons, which are bosons, can form a 2D superfluid due to Bose-Einstein condensation inside a nonlinear Fabry-Perot cavity filled with atoms in their ground states. A "photon fluid" forms inside the cavity as a result of multiple photon-photon collisions mediated by the atoms during a cavity ring-down time. The effective mass and chemical potential for a photon inside this fluid are nonvanishing. This implies the existence of a Bogoliubov dispersion relation for the low-lying elementary excitations of the photon fluid, and in particular, that sound waves exist for long-wavelength, low-frequency disturbances of this fluid. Possible experiments to test for the superfluidity of the photon fluid based on the Landau critical-velocity criterion will be discussed.
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"abstract": "We discuss the possibility that photons, which are bosons, can form a 2D\nsuperfluid due to Bose-Einstein condensation inside a nonlinear Fabry-Perot\ncavity filled with atoms in their ground states. A \"photon fluid\" forms inside\nthe cavity as a result of multiple photon-photon collisions mediated by the\natoms during a cavity ring-down time. The effective mass and chemical potential\nfor a photon inside this fluid are nonvanishing. This implies the existence of\na Bogoliubov dispersion relation for the low-lying elementary excitations of\nthe photon fluid, and in particular, that sound waves exist for\nlong-wavelength, low-frequency disturbances of this fluid. Possible experiments\nto test for the superfluidity of the photon fluid based on the Landau\ncritical-velocity criterion will be discussed.",
"arxiv_id": "quant-ph/9908060",
"authors": [
"Raymond Y. Chiao"
],
"categories": [
"quant-ph",
"cond-mat.stat-mech"
],
"doi": "10.1016/S0030-4018(99)00615-X",
"title": "Bogoliubov dispersion relation for a \"photon fluid\": Is this a superfluid?",
"url": "https://arxiv.org/abs/quant-ph/9908060"
},
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