Wormholes supported by polytropic phantom energy

It is generally agreed that the acceleration of the Universe can best be explained by the presence of dark or phantom energy. The equation of state of the latter shows that the null energy condition is violated. Such a violation is the primary ingredient for sustaining traversable wormholes. This pa...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2010-06, Vol.67 (3-4), p.513-520
Main Authors: Jamil, Mubasher, Kuhfittig, Peter K. F., Rahaman, Farook, Rakib, Sk. A.
Format: Article
Language:English
Subjects:
Acceleration
Astronomy
Astrophysics and Cosmology
Asymptotic properties
Elementary Particles
Energy of formation
Equations of state
Exact sciences and technology
Hadrons
Heavy Ions
Ingredients
Mathematical models
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Red shift
Regular Article - Theoretical Physics
Shape functions
String Theory
The physics of elementary particles and fields
Universe
Wormholes
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Summary:It is generally agreed that the acceleration of the Universe can best be explained by the presence of dark or phantom energy. The equation of state of the latter shows that the null energy condition is violated. Such a violation is the primary ingredient for sustaining traversable wormholes. This paper discusses wormholes supported by a more general form called polytropic phantom energy. Its equation of state results in significant generalizations of the phantom-energy and, in some cases, the generalized Chaplygin-gas wormhole models, both of which continue to receive considerable attention from researchers. Several specific solutions are explored, namely, a constant redshift function, a particular choice of the shape function, and an isotropic-pressure model with various shape functions. Some of the wormhole spacetimes are asymptotically flat, but most are not.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-010-1325-3