Lorentz transform of black-body radiation temperatureT. K. Nakamura
Fukui Prefectural University - 910-1195 Fukui, Japan
received on 15 September 2009; accepted in final form by R. A. Treumann on 28 September 2009; published October 2009
published online 2 November 2009
The Lorentz transform of black-body radiation has been investigated from the viewpoint of relativistic statistical mechanics. The result shows that the well-known expression with the directional temperature can be derived based on the inverse-temperature four-vector. The directional temperature in the past literature was the result of mathematical manipulation and its physical meaning is not clear. The inverse-temperature four-vector has, in contrast, clear meaning to understand relativistic thermodynamical processes.
05.30.-d - Quantum statistical mechanics.
98.70.Vc - Background radiations.
© EPLA 2009