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Thermodynamic fluctuations of an electromagnetic field in dispersing media at finite temperatures

  • Elementary Particle Physics and Field Theory
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Abstract

The spatial correlator of vector potentials is calculated for a dispersing absorbing medium. Quantum electrodynamics calculations performed without resorting to the fluctuation_dissipation theorem show that this correlator is determined solely by the refractive index of the medium at low temperatures. In thermally excited media, the correlator is determined by a characteristic which differs from the refractive index entering into the Maxwell equations for classical fields.

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Authors
  1. B. A. Veklenko
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  2. Yu. B. Sherkunov
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Additional information

Moscow Energy Institute. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 6, pp. 17–21, June, 2000.

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Veklenko, B.A., Sherkunov, Y.B. Thermodynamic fluctuations of an electromagnetic field in dispersing media at finite temperatures. Russ Phys J 43, 455–459 (2000). https://doi.org/10.1007/BF02508622

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  • DOI: https://doi.org/10.1007/BF02508622

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