Gaussian approximation of lambdaphi/sup 4/ theory in (3+1)-dimensional spatially flat Robertson-Walker space

Journal Article · Wed Mar 15 04:00:00 EST 1989 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.39.1674· OSTI ID:6454573

Pohle, H

We investigate lambdaphi/sup 4/ theory within the Gaussian approximation in spatially flat Robertson-Walker space in 3+1 dimensions. After having performed an adiabatic expansion for one of the ansatz functions, we find that the renormalization of the energy-momentum tensor provides two additional constraints which have to be satisfied by the bare couplings. These conditions force the theory to be trivial after renormalization.

• Research Organization: Sektion Physik/WB QFT, Naturwissenschaftlich-Theoretisches Zentrum der Karl-Marx-Universitaet, DDR-7010 Leipzig, German Democratic Republic
• OSTI ID: 6454573
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 39:6; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ENERGY-MOMENTUM TENSOR
FIELD THEORIES
FOUR-DIMENSIONAL CALCULATIONS
GAUSSIAN PROCESSES
MATHEMATICAL SPACE
METRICS
MINKOWSKI SPACE
PHI4-FIELD THEORY
QUANTUM FIELD THEORY
RENORMALIZATION
SPACE
TENSORS
VARIATIONAL METHODS