1993 | OriginalPaper | Buchkapitel
Thermodynamics of Light and Sound
verfasst von : Ingo Müller, Tommaso Ruggeri
Erschienen in: Extended Thermodynamics
Verlag: Springer US
Enthalten in: Professional Book Archive
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Light in a cavity and sound in a solid may be considered as gases of quasi-particles, the photons, and phonons respectively. It is then possible to treat them thermodynamically. The first successful attempt in that direction was Boltzmann’s derivation of what we now call the Stefan-Boltzmann law. That law relates the energy density of cavity radiation in equilibrium with the wall to the temperature of the wall.