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- Title
QUANTUM AND THERMAL EFFECTS IN THE MATTER-GRAVITY SYSTEM.
- Authors
VENTURI, G.
- Abstract
The matter-gravity system is examined in a path integral approach for the case of conformal matter coupled to a Friedmann-Robertson-Walker space time. In particular the case of gravitational potentials of interest in cosmology for which the universe tunnels from a small radius is examined. It is observed that in the presence of such gravitational horizons the universe evolves in a complex time and it is shown how a classical time and temperature emerge. Correspondingly one will have compensating quantum and thermal fluctuations for the matter and gravity system and it is noted that the unstable mode of gravity corresponding to the universe tunnelling into existence will be compensated by analogous modes for matter corresponding to its creation.
- Publication
International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology, 1994, Vol 3, Issue 1, p309
- ISSN
0218-2718
- Publication type
Article
- DOI
10.1142/S0218271894000526