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Cylindrically symmetric wormholes WhC R e: The motion of test particles

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dc.contributor.author Aminova A.
dc.contributor.author Brill D.
dc.contributor.author Chumarov P.
dc.contributor.author Shemakhin A.
dc.date.accessioned 2018-09-19T21:29:06Z
dc.date.available 2018-09-19T21:29:06Z
dc.date.issued 2016
dc.identifier.issn 1550-7998
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/144048
dc.description.abstract © 2016 American Physical Society.We study the radial and nonradial motion of massive test particles and photons in a three-parameter family of cylindrically symmetric wormholes WhCRe generated by the electromagnetic, dilaton, and scalar fields, with particular attention paid to the extent to which the wormhole is traversable. The wormholes are not asymptotically flat and contain a curvature singularity at one end of the wormhole. In the case of nonradial motion with conserved energy and angular momentum along a hypersurface z=const ("planar orbits") we show that, as in the Kerr and Schwarzschild geometries, we should distinguish between orbits with impact parameters greater or less than a certain critical value Dc, which corresponds to the unstable circular orbit of radius uc. For D2>Dc2 there are two kinds of orbits: orbits of the first kind arrive from infinity and turn around at the orbit's minimum radial coordinate u ("pericenter") greater than uc, whereas orbits of the second kind turn around at maximum radial coordinate u ("apocenter") less than uc and terminate at the singularity at u=-. For D=Dc orbits of the first and second kinds merge and both orbits spiral an infinite number of times toward the unstable circular orbit u=uc. For D2<Dc2 we have only orbits of one kind: starting at infinity, they cross the wormhole throat and terminate at the singularity.
dc.relation.ispartofseries Physical Review D - Particles, Fields, Gravitation and Cosmology
dc.title Cylindrically symmetric wormholes WhC R e: The motion of test particles
dc.type Article
dc.relation.ispartofseries-issue 2
dc.relation.ispartofseries-volume 94
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS15507998-2016-94-2-SID84979608069


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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