Nonminimal coupling for the gravitational and electromagnetic fields: Traversable electric wormholes

Journal Article · Thu Apr 15 04:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.084015· OSTI ID:21409597

Balakin, Alexander B; Zayats, Alexei E ^[1]; Lemos, Jose P. S. ^[2]

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1. Department of General Relativity and Gravitation, Kazan State University, Kremlevskaya str. 18, Kazan 420008 (Russian Federation)
2. Centro Multidisciplinar de Astrofisica-CENTRA Departamento de Fisica, Instituto Superior Tecnico-IST, Universidade Tecnica de Lisboa-UTL, Avenida Rovisco Pais 1, 1049-001 Lisboa (Portugal)

We discuss new exact solutions of a three-parameter nonminimal Einstein-Maxwell model. The solutions describe static spherically symmetric objects with and without center, supported by an electric field nonminimally coupled to gravity. We focus on a unique one-parameter model, which admits an exact solution for a traversable electrically charged wormhole connecting two universes, one asymptotically flat the other asymptotically de Sitter ones. The relation between the asymptotic mass and charge of the wormhole and its throat radius is analyzed. The wormhole solution found is thus a nonminimal realization of Wheeler's idea about charge without charge and shows that, if the world is somehow nonminimal in the coupling of gravity to electromagnetism, then wormhole appearance, or perhaps construction, is possible.

• OSTI ID: 21409597
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 8 Vol. 81; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMPTOTIC SOLUTIONS
COUPLING
DE SITTER SPACE
EINSTEIN-MAXWELL EQUATIONS
ELECTRIC FIELDS
ELECTROMAGNETIC FIELDS
ELECTROMAGNETISM
EQUATIONS
EXACT SOLUTIONS
FABRICATION
FASTENING
FIELD EQUATIONS
GRAVITATION
GRAVITATIONAL FIELDS
JOINING
MAGNETISM
MASS
MATHEMATICAL SOLUTIONS
MATHEMATICAL SPACE
SIMULATION
SPACE
SYMMETRY
UNIVERSE