Quantum field theory of universe

Details Quantum field theory of universe Quantum field theory of universe

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988qftu.rept.....h&link_type=abstract

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Physics

Quantum Theory, Universe, Wave Functions, Field Theory (Physics), Relativity

Scientific paper

As is well-known, the wave function of universe dictated by the Wheeler-DeWitt equation has a difficulty in its probabilistic interpretation. In order to overcome this difficulty, we explore a theoretical possibility of the second quantization of universe, following the same passage historically taken for the Klein-Gordon particles and the Nambu-Goto strings. It turns out that multiple production of universes is an inevitable consequence even if the initial state is nothing. The problematical interpretation of wave function of universe is circumvented by introducing an internal comoving model detector, which is an analogue of the DeWitt-Unruh detector in the quantum field theory in curved space-time.

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