Quantum field theory of the Universe

Journal Article · Tue Feb 14 23:00:00 EST 1989 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.39.1123· OSTI ID:6533783

Hosoya, A; Morikawa, M

As is well known, the wave function of the 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 the 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 the wave function of the Universe is circumvented by introducing an internal comoving model detector, which is an analogue of the DeWitt-Unruh detector in quantum field theory in curved space-time.

• Research Organization: Research Institute for Theoretical Physics, Hiroshima University, Takehara, Hiroshima 725, Japan
• OSTI ID: 6533783
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 39:4; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
645400 -- High Energy Physics-- Field Theory
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMOLOGY
DIFFERENTIAL EQUATIONS
EQUATIONS
FIELD THEORIES
FUNCTIONS
KLEIN-GORDON EQUATION
MECHANICS
METRICS
PARTIAL DIFFERENTIAL EQUATIONS
QUANTIZATION
QUANTUM FIELD THEORY
QUANTUM MECHANICS
SCALAR FIELDS
SPACE-TIME
UNIVERSE
WAVE EQUATIONS
WAVE FUNCTIONS