File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Wormhole geometries with conformal motions

TitleWormhole geometries with conformal motions
Authors
Issue Date2008
PublisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/EJ/cqg
Citation
Classical and Quantum Gravity, 2008, v. 25 n. 7 How to Cite?
AbstractExact solutions of traversable wormholes were recently found under the assumption of spherical symmetry and the existence of a non-static conformal symmetry. In this paper, we verify that in the case of the conformally symmetric spacetimes with a non-static vector field generating the symmetry, the conformal factor ψ can be physically interpreted in terms of a measurable quantity, namely, the tangential velocity of a massive test particle moving in a stable circular orbit in the spacetime. Physical properties of the rotational velocity of test particles and of the redshift of radiation emitted by ultra-relativistic particles rotating around these hypothetical general relativistic objects are further discussed. Finally, specific characteristics and properties of gravitational bremsstrahlung emitted by charged particles in geodesic motion in conformally symmetric wormhole geometries are also explored. © 2008 IOP Publishing Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/91767
ISSN
2015 Impact Factor: 2.837
2015 SCImago Journal Rankings: 1.633
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorBöhmer, CGen_HK
dc.contributor.authorHarko, Ten_HK
dc.contributor.authorLobo, FSNen_HK
dc.date.accessioned2010-09-17T10:26:00Z-
dc.date.available2010-09-17T10:26:00Z-
dc.date.issued2008en_HK
dc.identifier.citationClassical and Quantum Gravity, 2008, v. 25 n. 7en_HK
dc.identifier.issn0264-9381en_HK
dc.identifier.urihttp://hdl.handle.net/10722/91767-
dc.description.abstractExact solutions of traversable wormholes were recently found under the assumption of spherical symmetry and the existence of a non-static conformal symmetry. In this paper, we verify that in the case of the conformally symmetric spacetimes with a non-static vector field generating the symmetry, the conformal factor ψ can be physically interpreted in terms of a measurable quantity, namely, the tangential velocity of a massive test particle moving in a stable circular orbit in the spacetime. Physical properties of the rotational velocity of test particles and of the redshift of radiation emitted by ultra-relativistic particles rotating around these hypothetical general relativistic objects are further discussed. Finally, specific characteristics and properties of gravitational bremsstrahlung emitted by charged particles in geodesic motion in conformally symmetric wormhole geometries are also explored. © 2008 IOP Publishing Ltd.en_HK
dc.languageengen_HK
dc.publisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/EJ/cqgen_HK
dc.relation.ispartofClassical and Quantum Gravityen_HK
dc.titleWormhole geometries with conformal motionsen_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.identifier.doi10.1088/0264-9381/25/7/075016en_HK
dc.identifier.scopuseid_2-s2.0-43049138838en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-43049138838&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume25en_HK
dc.identifier.issue7en_HK
dc.identifier.eissn1361-6382-
dc.identifier.isiWOS:000254150800017-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats