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Article: Conformally symmetric traversable wormholes

TitleConformally symmetric traversable wormholes
Authors
Issue Date2007
PublisherAmerican Physical Society. The Journal's web site is located at http://prd.aps.org
Citation
Physical Review D - Particles, Fields, Gravitation and Cosmology, 2007, v. 76 n. 8, article no. 084014 How to Cite?
AbstractExact solutions of traversable wormholes are found under the assumption of spherical symmetry and the existence of a nonstatic conformal symmetry, which presents a more systematic approach in searching for exact wormhole solutions. In this work, a wide variety of solutions are deduced by considering choices for the form function, a specific linear equation of state relating the energy density and the pressure anisotropy, and various phantom wormhole geometries are explored. A large class of solutions impose that the spatial distribution of the exotic matter is restricted to the throat neighborhood, with a cutoff of the stress-energy tensor at a finite junction interface, although asymptotically flat exact solutions are also found. Using the "volume integral quantifier," it is found that the conformally symmetric phantom wormhole geometries may, in principle, be constructed by infinitesimally small amounts of averaged null energy condition violating matter. Considering the tidal acceleration traversability conditions for the phantom wormhole geometry, specific wormhole dimensions and the traversal velocity are also deduced. © 2007 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/91851
ISSN
2014 Impact Factor: 4.643
2015 SCImago Journal Rankings: 1.882
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorBöhmer, CGen_HK
dc.contributor.authorHarko, Ten_HK
dc.contributor.authorLobo, FSNen_HK
dc.date.accessioned2010-09-17T10:28:28Z-
dc.date.available2010-09-17T10:28:28Z-
dc.date.issued2007en_HK
dc.identifier.citationPhysical Review D - Particles, Fields, Gravitation and Cosmology, 2007, v. 76 n. 8, article no. 084014en_HK
dc.identifier.issn1550-7998en_HK
dc.identifier.urihttp://hdl.handle.net/10722/91851-
dc.description.abstractExact solutions of traversable wormholes are found under the assumption of spherical symmetry and the existence of a nonstatic conformal symmetry, which presents a more systematic approach in searching for exact wormhole solutions. In this work, a wide variety of solutions are deduced by considering choices for the form function, a specific linear equation of state relating the energy density and the pressure anisotropy, and various phantom wormhole geometries are explored. A large class of solutions impose that the spatial distribution of the exotic matter is restricted to the throat neighborhood, with a cutoff of the stress-energy tensor at a finite junction interface, although asymptotically flat exact solutions are also found. Using the "volume integral quantifier," it is found that the conformally symmetric phantom wormhole geometries may, in principle, be constructed by infinitesimally small amounts of averaged null energy condition violating matter. Considering the tidal acceleration traversability conditions for the phantom wormhole geometry, specific wormhole dimensions and the traversal velocity are also deduced. © 2007 The American Physical Society.en_HK
dc.languageengen_HK
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prd.aps.orgen_HK
dc.relation.ispartofPhysical Review D - Particles, Fields, Gravitation and Cosmologyen_HK
dc.rightsPhysical Review D (Particles, Fields, Gravitation and Cosmology). Copyright © American Physical Society-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleConformally symmetric traversable wormholesen_HK
dc.typeArticleen_HK
dc.identifier.emailHarko, TC:harko@hkucc.hku.hken_HK
dc.identifier.authorityHarko, TC=rp1333en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevD.76.084014en_HK
dc.identifier.scopuseid_2-s2.0-35649018264en_HK
dc.identifier.hkuros242352-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-35649018264&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume76en_HK
dc.identifier.issue8en_HK
dc.identifier.eissn1550-2368-
dc.identifier.isiWOS:000250621400058-

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