Vacuum-polarization effects in global monopole space-times

Journal Article · Tue Jan 15 00:00:00 EST 1991 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.43.468· OSTI ID:6099021

Mazzitelli, F D ^[1]; Lousto, C O ^[2]

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1. Instituto de Astronomia y Fisica del Espacio, Casilla de Correo 67, Sucursal 28, 1428 Buenos Aires, Argentina (AR) Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab 1, 1428 Buenos Aires, (Argentina)
2. Instituto de Astronomia y Fisica del Espacio, Casilla de Correo 67, Sucursal 28, 1428 Buenos Aires, (Argentina)

The gravitational effect produced by a global monopole may be approximated by a solid deficit angle. As a consequence, the energy-momentum tensor of a quantum field will have a nonzero vacuum expectation value. Here we study this vacuum-polarization effect'' around the monopole. We find explicit expressions for both {l angle}{phi}{sup 2}{r angle}{sub ren} and {l angle}{ital T}{sub {mu}{nu}}{r angle}{sub ren} for a massless scalar field. The back reaction of the quantum field on the monopole metric is also investigated.

• OSTI ID: 6099021
• Journal Information: Physical Review, D (Particles Fields); (USA), Vol. 43:2; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
QUANTUM FIELD THEORY
MONOPOLES
VACUUM POLARIZATION
SPACE-TIME
BLACK HOLES
COUPLING CONSTANTS
ENERGY-MOMENTUM TENSOR
LAGRANGIAN FUNCTION
MASSLESS PARTICLES
METRICS
PROPAGATOR
RENORMALIZATION
SCALAR FIELDS
SYMMETRY BREAKING
ELEMENTARY PARTICLES
FIELD THEORIES
FUNCTIONS
TENSORS
645400* - High Energy Physics- Field Theory
645300 - High Energy Physics- Particle Invariance Principles & Symmetries
640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources