Superstrings in quantum cosmology

Journal Article · Wed Jan 15 04:00:00 EST 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.45.412· OSTI ID:5084436

Wang, J ^[1]

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1. Department of Astronomy and Astrophysics, University of Illinois, Urbana, Illinois 61801 (United States)

We consider the dynamics of a four-dimensional universe using the pointlike field-theory effective action of superstrings. We use the boundary conditions of Hartle and Hawking and Vilenkin to solve the Wheeler-DeWitt equation. We find that under certain conditions the Universe will tunnel from a Euclidean regime to a Lorentzian regime. We study this process. We find that the inclusion of fermions (as extra internal degrees of freedom) due to supersymmetry can change the conclusion of Enqvist {ital et} {ital al}. where only bosonic fields were considered.

• OSTI ID: 5084436
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 45:2; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662110* -- General Theory of Particles & Fields-- Theory of Fields & Strings-- (1992-)
662120 -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BOUNDARY CONDITIONS
COMPOSITE MODELS
COSMOLOGY
EUCLIDEAN SPACE
EXTENDED PARTICLE MODEL
FERMIONS
FIELD THEORIES
FOUR-DIMENSIONAL CALCULATIONS
GRAVITATIONAL FIELDS
MATHEMATICAL MODELS
MATHEMATICAL SPACE
METRICS
PARTICLE MODELS
PROBABILITY
QUANTUM FIELD THEORY
QUARK MODEL
RIEMANN SPACE
SCALAR FIELDS
SPACE
STRING MODELS
SUPERSYMMETRY
SYMMETRY
UNIVERSE