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Equilibrium radiation in a plasma medium with spatial and frequency dispersion

机译:具有空间和频率分散的等离子体介质中的平衡辐射

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摘要

Examination of equilibrium radiation in plasma media shows that the spectral energy distribution of such radiation differs from that of Planck equilibrium radiation. Using the quantum electrodynamic approach, the general relation for the spectral energy density of equilibrium radiation in a system of charged particles is found. The obtained result takes into account the influence of plasma on equilibrium radiation through the explicit transverse dielectric permittivity which includes spatial and frequency dispersion, as well as the finite collision damping. For the limiting case of infinitesimal damping the result is identical with the known expression.
机译:等离子体介质中的平衡辐射的检查表明,这种辐射的光谱能量分布与普朗克平衡辐射的光谱能量分布不同。 使用量子电动力学方法,发现了对带电粒子系统中的平衡辐射的光谱能量密度的一般关系。 所获得的结果考虑了通过显式横向介电介电常数的等离子体对平衡辐射的影响,包括空间和频率分散,以及有限碰撞阻尼。 对于无限抑制的限制情况,结果与已知表达相同。

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