Expanding and nonexpanding conformal wormholes in scalar-tensor theory
Küçük Resim Yok
Tarih
2015
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
WORLD SCIENTIFIC PUBL CO PTE LTD
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
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.
Açıklama
Anahtar Kelimeler
Scalar-tensor theories, anisotropic fluid, spherically symmetry, wormholes, Casimir effect for macroscopic systems, big rip singularity
Kaynak
INTERNATIONAL JOURNAL OF MODERN PHYSICS D
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
24
Sayı
8
