Origin of the Universe as a quantum tunneling event
We present a model of cosmogenesis in which the Universe arises as a result of quantum-mechanical barrier penetration. The Universe is described throughout its evolution by a Friedmann-Robertson-Walker (FRW) metric, and the matter distribution by a perfect fluid, whose equation of state is chosen so as to allow the tunneling to occur. Cosmic evolution proceeds in three stages; an initial static spacetime configuration tunnels into a ''fireball'' state in which particle creation occurs. As the fireball expands, particle creation ends, and the Universe enters the ''post-big-bang'' epoch of adiabatic expansion. We find that within the context of the FRW ansatz, only a spatially closed universe may originate in this manner. Implications of this creation scheme and possible generalizations are discussed. As a by-product of this investigation we find that the evolution of the Universe is described by a Gell-Mann--Low equation with the ..beta.. function specified by the equation of state.
- Research Organization:
- The Rockefeller University, New York, New York 10021
- DOE Contract Number:
- AC02-81ER40033
- OSTI ID:
- 5384466
- Journal Information:
- Phys. Rev. D; (United States), Vol. 25:8
- Country of Publication:
- United States
- Language:
- English
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