ωdependence of the scalar field in Brans-Dicke theory

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ω dependence of the scalar field in Brans-Dicke theory

This article examines the claim that the Brans-Dicke scalar field φ→ φ0+ O (

متن کامل

A Quintessence Scalar Field in Brans–Dicke Theory

It is shown that a minimally coupled scalar field in Brans–Dicke theory yields a non–decelerated expansion for the present universe for open, flat and closed Friedmann-Robertson-Walker models.

متن کامل

Brans-Dicke Scalar Field as a Chameleon

In this paper it is shown that in Brans Dicke theory, if one considers a non-minimal coupling between the matter and the scalar field, it can give rise to a late time accelerated expansion for the universe preceded by a decelerated expansion for very high values of the Brans Dicke parameter ω.

متن کامل

Cosmology in Brans-Dicke theory with a scalar potential

We consider the general behaviour of cosmologies in Brans-Dicke theory where the dilaton is self-interacting via a potential V (Φ). We show that the general radiation universe is a two-dimensional dynamical system whereas the dust or false vacuum universe is threedimensional. This is in contrast to the non-interacting dilaton which has uniformly a two-dimensional phase space. We find the phase ...

متن کامل

Brans-Dicke cosmology with a scalar field potential

– Three solutions of the Brans-Dicke theory with a self-interacting quartic potential and perfect fluid distribution are presented for a spatially flat FRW geometry. The physical behavior is consistent with the recent cosmological scenario favored by supernova type-Ia observations, indicating an accelerated expansion of the Universe. Introduction. – Recent observations of type-Ia supernovae wit...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physical Review D

سال: 2001

ISSN: 0556-2821,1089-4918

DOI: 10.1103/physrevd.64.087501