Anisotropic Universe Models with Perfect Fluid and Scalar Field inf(R,T) Gravity
نویسندگان
چکیده
منابع مشابه
Charged Perfect Fluid and Scalar Field Coupled to Gravity
Charged perfect fluid with vanishing Lorentz force and massless scalar field is studied in the case of stationary cylindrically symmetric spacetime. The scalar field can depend both on radial and longitudinal coordinates. Solutions are found and classified according to scalar field gradient and magnetic field relationship. Their physical and geometrical properties are examined and discussion of...
متن کاملInhomogeneous Perfect Fluid Universe with Electromagnetic Field in Lyra Geometry
A new class of cylindrically symmetric inhomogeneous cosmological models for perfect fluid distribution with electromagnetic field is obtained in the context of Lyra’s geometry. We have obtained two types of solutions by considering the uniform as well as time dependent displacement field. The source of the magnetic field is due to an electric current produced along the z-axis.Only F12 is a non...
متن کاملScalar Field Cosmologies with Perfect Fluid in Robertson-walker Metric
Several isotropic, homogeneous cosmological models containing a self-interacting minimally coupled scalar eld, a perfect uid source and cosmological constant are solved. New exact, asymptotically stable solutions with an in ationary regime or a nal Friedmann stage are found for some simple, interesting potentials. It is shown that the uid and the curvature may determine how these models evolve ...
متن کاملIsotropisation of Bianchi class A models with a minimally coupled scalar field and a perfect fluid
We look for the necessary conditions allowing the Universe isotropisation in presence of a minimally coupled and massive scalar field with a perfect fluid. We conclude that it arises only when the Universe is scalar field dominated, leading to flat spacelike sections and accelerated expansion, and examine the case of a SUGRA theory. Published in Class. Quantum Grav. vol 21, 6, 1609-1621, 2004
متن کاملScalar field models for an accelerating universe
I describe a new class of quintessence+CDMmodels in which late time scalar field oscillations can give rise to both quintessence and cold dark matter. Additionally, a versatile ansatz for the luminosity distance is used to reconstruct the quintessence equation of state in a model independent manner from observations of high redshift supernovae. 1. A new model of quintessence and cold dark matte...
متن کاملذخیره 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: Journal of the Physical Society of Japan
سال: 2012
ISSN: 0031-9015,1347-4073
DOI: 10.1143/jpsj.81.114005