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Planck’s law and the light quantum hypothesis


The phase space of a light quantum in a given volume is subdivided into “cells” of magnitudeh 3. The number of possible distributions of the light quanta of a macroscopically defined radiation over these cells gives the entropy and with it all thermodynamic properties of the radiation.

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Bose, S. Planck’s law and the light quantum hypothesis. J. Astrophys. Astr. 15, 3–7 (1994).

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  • Phase Space
  • Quantum Theory
  • Light Quantum
  • Phase Space Volume
  • Vacant Cell