منابع مشابه
Jordan, 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.
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For the last few decades, it is generally believed that after a (small) period of inflationary era (when the universe was accelerated) the universe has been evolving in a Big bang scenario (deceleration of the universe) and most of the present day observations are in accord with this cosmological model (known as Standard Cosmological Model). But difficulty has started when recent data from high...
متن کاملBlack hole area in Brans-Dicke theory.
We have shown that the dynamics of the scalar field φ(x) = “G−1(x)” in BransDicke theories of gravity makes the surface area of the black hole horizon oscillatory during its dynamical evolution. It explicitly explains why the area theorem does not hold in Brans-Dicke theory. However, we show that there exists a certain non-decreasing quantity defined on the event horizon which is proportional t...
متن کاملVacuumless cosmic strings in Brans - Dicke theory
The gravitational fields of vacuumless global and gauge string have been studied in Brans-Dicke theory under the weak field assumption of the field equations. It has been shown that the global vacuumless string has a repulsive gravitational effect whereas the gauge string has an attractive gravitational effect in BD theory.
متن کاملSuperconducting cosmic string in Brans-Dicke theory
In the present work, the gravitational field of superconducting cosmic string has been investigated in the context of Brans-Dicke theory of gravity. We have presented two kind of solutions for the spacetime in the far field zone of the string. When the B-D scalar field is switched off, one of the solutions reduces to the solution earlier obtained by Moss and Poletti in General Relativity. e-mai...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1995
ISSN: 0033-068X
DOI: 10.1143/ptp.93.621