Speed of Propagation of Infinitesimal Disturbances in a Relativistic Gas
- 11 April 1983
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 50 (15) , 1122-1124
- https://doi.org/10.1103/physrevlett.50.1122
Abstract
The phase speed of infinitesimal disturbances in a relativistic gas is shown to be less than the speed of light. The result is obtained by means of the kinetic theory of gases and is valid for any collision operator. The treatment applies, in particular, to the speeds of propagation of sound, shear, and heat waves. These waves are further shown to be damped.Keywords
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