Quantum fluctuation-dissipation theorem for general relativity

Details Quantum fluctuation-dissipation theorem for general relativity Quantum fluctuation-dissipation theorem for general relativity

Apr 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrvd..33.2136m&link_type=abstract

Physical Review D (Particles and Fields), Volume 33, Issue 8, 15 April 1986, pp.2136-2146

Mathematics

Logic

52

Scientific paper

By applying linear-response methods long familiar in many-body theory to quantum fluctuations in curved spacetime, the vacuum is shown to behave like a dissipative as well as a fluctuating medium. The implications of this quantum vacuum ``viscosity'' for cosmology and the cosmological constant are discussed. Since the de Sitter phase is unstable to particle creation processes, this vacuum dissipative mechanism may be responsible for the approximate flatness of the observed Universe.

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