Expanding and nonexpanding conformal wormholes in scalar-tensor theory
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Date
2015
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
Access Rights
info:eu-repo/semantics/closedAccess
Abstract
We study spherically symmetric spacetime with anisotropic fluid in the scalar-tensor theory of gravity based on Lyra geometry. We suggest two different solutions of field equations for the theory by using Casimir effect. Obtained static and nonstatic solutions are similar to nonexpanding Lorentzian wormhole and expanding FRW-type wormhole, respectively. Furthermore, we study singularities of obtained solutions. We emphasize whether the expanding and nonexpanding wormholes conform with Big Rip or Big Crunch scenarios. Also, physical and geometrical properties of the solutions have been discussed.
Description
Keywords
Scalar-tensor theories, anisotropic fluid, spherically symmetry, wormholes, Casimir effect for macroscopic systems, big rip singularity
Journal or Series
INTERNATIONAL JOURNAL OF MODERN PHYSICS D
WoS Q Value
Q2
Scopus Q Value
Q2
Volume
24
Issue
8
