Quantum state of the multiverse

Details Quantum state of the multiverse Quantum state of the multiverse

2010-05-12

arxiv.org/abs/1005.2147v2

Phys.Rev.D81:083529,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

15 pages, 2 figures

Scientific paper

A third quantization formalism is applied to a simplified multiverse scenario. A well defined quantum state of the multiverse is obtained which agrees with standard boundary condition proposals. These states are found to be squeezed, and related to accelerating universes: they share similar properties to those obtained previously by Grishchuk and Siderov. We also comment on related works that have criticized the third quantization approach.

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