Massive phonons and gravitational dynamics in a photon-fluid model
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DOI: 10.1103/physreva.100.063825
Abstract: Excitation dynamics in a photon fluid with both local and nonlocal interactions are investigated theoretically. Collective excitations are found to display a gapped Bogoliubov spectrum, which at low energies corresponds to that of massive phonons… read more here.
Keywords: phonons gravitational; photon fluid; fluid model; massive phonons ... See more keywords