Nonminimal coupling for the gravitational and electromagnetic fields: Traversable electric wormholes
- Department of General Relativity and Gravitation, Kazan State University, Kremlevskaya str. 18, Kazan 420008 (Russian Federation)
- 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, Vol. 81, Issue 8; Other Information: DOI: 10.1103/PhysRevD.81.084015; (c) 2010 The American Physical Society; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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ASYMPTOTIC SOLUTIONS
COUPLING
DE SITTER SPACE
EINSTEIN-MAXWELL EQUATIONS
ELECTRIC FIELDS
ELECTROMAGNETIC FIELDS
ELECTROMAGNETISM
EXACT SOLUTIONS
FASTENING
GRAVITATION
GRAVITATIONAL FIELDS
MASS
SIMULATION
SYMMETRY
UNIVERSE
EQUATIONS
FABRICATION
FIELD EQUATIONS
JOINING
MAGNETISM
MATHEMATICAL SOLUTIONS
MATHEMATICAL SPACE
SPACE