Magnetic field induced by vacuum polarization in de Sitter spacetime

Journal Article · Thu Jun 15 00:00:00 EDT 1989 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.39.3612· OSTI ID:6018088

Kawati, S; Kokado, A

We derive the effective Lagrangian of a magnetic field in the context of amassless scalar QED coupled to gravity in de Sitter spacetime. It is found thatthe magnetic field is produced at the beginning of the inflation in a minimallycoupled scalar QED, and that the intensity /ital B/ is proportional to/ital eH//sup 2/ (/ital H/ is the Hubble constant). When/ital H/=10/sup 15/ GeV, /ital B//similar to/1.3/times/10/sup 47/ G.

• Research Organization: Department of Physics, Kwansei Gakuin University, Nishinomiya 662, Japan(JP)
• OSTI ID: 6018088
• Journal Information: Phys. Rev. D; (United States), Vol. 39:12
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
QUANTUM ELECTRODYNAMICS
SPACE-TIME
UNIVERSE
VACUUM POLARIZATION
COSMOLOGY
ELECTROMAGNETIC FIELDS
GRAVITATIONAL FIELDS
HUBBLE EFFECT
LAGRANGIAN FUNCTION
MAGNETIC FIELDS
MASSLESS PARTICLES
SCALAR FIELDS
ELECTRODYNAMICS
ELEMENTARY PARTICLES
FIELD THEORIES
FUNCTIONS
QUANTUM FIELD THEORY
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