1999/05/31 by R. Y. Chiao, Raymond Y. Chiao, Jack Boyce · 113 citations
Physics and Astronomy · #Classical mechanics #Cold Atom Physics and Bose-Einstein Condensates #Dispersion relation #Measure (data warehouse) #Nonlinear Photonic Systems #Nonlinear system #Photon #Physics #Quantum electrodynamics #Quantum fluid #Quantum mechanics #Strong Light-Matter Interactions #Superfluidity #cond-mat #quant-ph
paper · pdf · doi:10.1103/physreva.60.4114
published in Physical Review A 60(5), 4114-4121 (American Physical Society) · 11 pages, 4 figures, REVTEX style, to be published in PRA, Nov. 1, 1999
arxiv created 1999/10/12 · openalex publication_date 1999/11/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The Bogoliubov dispersion relation for the elementary excitations of the weakly interacting Bose gas is shown to hold for the case of the weakly interacting photon gas (the ``photon fluid'') in a nonlinear Fabry-Perot cavity. The chemical potential of a photon in the two-dimensional photon fluid does not vanish. The Bogoliubov relation, which is also derived by means of a linearized fluctuation analysis in classical nonlinear optics, implies the possibility of a new, superfluid state of light. The theory underlying an experiment in progress to observe sound waves in the photon fluid is described, and another experiment to measure the critical velocity of this superfluid is proposed.