Vacuum polarization in gravitational and electromagnetic fields around a superconducting string

Journal Article · Fri Sep 15 00:00:00 EDT 1989 · Physical Review (Section) D: Particles and Fields; (USA)

DOI:https://doi.org/10.1103/PhysRevD.40.2134· OSTI ID:5594692

Mankiewicz, L ^[1]; Misiak, M ^[2]

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1. Nicolaus Copernicus Astronomical Centre, Polish Academy of Sciences, 00-716 Warsaw, ul. Bartycka 18, Poland (PL)
2. Institute for Theoretical Physics, University of Warsaw, 00-681 Warsaw, ul. Hoza 69, Poland

We have calculated the polarization current induced in the physical vacuum around a superconducting cosmic string taking into account the gravitational field of the string. The current can be calculated as an expansion in powers of the inverse of the electron mass. In the region far from the string, where it is justified to keep only the lowest term of this expansion, the polarization current turns out to screen the original current in the string, but the effect is very weak. A direct calculation of terms due to the presence of the gravitational field shows that they are dominated, for realistic string parameters, by the purely electromagnetic contribution.

• OSTI ID: 5594692
• Journal Information: Physical Review (Section) D: Particles and Fields; (USA), Vol. 40:6; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMOLOGICAL MODELS
TOPOLOGY
ELECTROMAGNETIC FIELDS
VACUUM POLARIZATION
GRAVITATIONAL FIELDS
ENERGY-MOMENTUM TENSOR
MASS RENORMALIZATION
QUANTUM ELECTRODYNAMICS
STRING MODELS
SUPERCONDUCTIVITY
SYMMETRY BREAKING
UNIVERSE
COMPOSITE MODELS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRODYNAMICS
EXTENDED PARTICLE MODEL
FIELD THEORIES
MATHEMATICAL MODELS
MATHEMATICS
PARTICLE MODELS
PHYSICAL PROPERTIES
QUANTUM FIELD THEORY
QUARK MODEL
RENORMALIZATION
TENSORS
640106* - Astrophysics & Cosmology- Cosmology
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