The Gibbs entropy production in general relativity

Details The Gibbs entropy production in general relativity The Gibbs entropy production in general relativity

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983nciml..38..609h&link_type=abstract

Nuovo Cimento, Lettere, Serie 2, vol. 38, Dec. 31, 1983, p. 609-614. Research supported by the Instituts Internationaux de Physi

Mathematics

Logic

18

Cosmology, Entropy, Gibbs Free Energy, Gravitation Theory, Relativity, Canonical Forms, Degrees Of Freedom, Gauge Theory, Hamiltonian Functions, Irreversible Processes

Scientific paper

The entropy production is analyzed in the case of homogeneous cosmological models of the Bianchi type. It is shown to vanish for class-A models and to be undefined for class-B ones, because of an ambiguity in the measure on the space of the true gravitational degrees of freedom. How this results extends to the full Einstein theory is discussed.

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