منابع مشابه
Brans-Dicke Wormholes in Non-Vacuum Spacetime
Analytical wormhole solutions in Brans-Dicke theory in the presence of matter are presented. It is shown that the wormhole throat must not be necessarily threaded with exotic matter. PACS number(s): 04.20Jb, 04.50+h ∗E-mail: [email protected] 1 The field equations of General Relativity, being local in character, admit solutions with nontrivial topology. Among these, wormholes have ...
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It was shown by Hiscock that the energy-momentum tensor commonly used to model local cosmic strings in linearized Einstein gravity can be extended and used in the full theory, obtaining a metric in the exterior of the source with the same deficit angle. Here we show that this tensor is an exception within a family for which a static solution does not exist in full Einstein nor in Brans-Dicke gr...
متن کاملEinstein-Brans-Dicke Cosmology
We studied the Einstein-Brans-Dicke cosmology in detail. The difference of the evolution of the universe is significant between Einstein-Brans-Dicke cosmology and standard big-bang model during the radiation-dominated era. The power-law evolution of the scale factor is fast enough to solve the cosmological puzzles and slow enough to avoid the graceful exit problem. However, the constraints from...
متن کاملJordan, Brans-Dicke theory.
Properties of the static, spherically symmetric solutions in the Jordan, Brans-Dicke theory. ABSTRACT. We have studied the properties of the static, spherically symmetric solution of Jordan, Brans-Dicke theory. An exact interior solution for standard space-time line element in the Schwarzschild form is obtained.
متن کاملBrans-Dicke Field Equations
We present the static spherically symmetric vacuum solutions of the Jordan, Brans-Dicke field equations. The new solutions are obtained by considering a polar Gaussian, isothermal and radial hyperbolic metrics.
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2010
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.82.084039