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Low-Frequency Behavior of the Spectral Energy Distribution Function of Equilibrium Radiation in a Degenerate Electron Gas

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Abstract

The low-frequency asymptotic behavior of the spectral energy distribution density of equilibrium radiation in a collisionless degenerate electron gas is studied. It is shown that the spatial dispersion in the electron gas permittivity leads to a logarithmic singularity in the spectral density distribution at low frequencies, similar to that we previously obtained for a Maxwellian plasma. In this case, the contribution of low frequencies to the total radiation energy remains finite. The results of the analytical consideration coincide with the numerical calculation.

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Correspondence to S. A. Trigger.

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Original Russian Text © S.A. Maslov, N.G. Goussein-zade, S.A. Trigger, 2018, published in Kratkie Soobshcheniya po Fizike, 2018, Vol. 45, No. 12, pp. 15–20.

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Maslov, S.A., Goussein-zade, N.G. & Trigger, S.A. Low-Frequency Behavior of the Spectral Energy Distribution Function of Equilibrium Radiation in a Degenerate Electron Gas. Bull. Lebedev Phys. Inst. 45, 381–384 (2018). https://doi.org/10.3103/S1068335618120035

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  • DOI: https://doi.org/10.3103/S1068335618120035

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