Classical and Quantum Cosmological Solutions in Teleparallel Dark Energy with Anisotropic Background Geometry
نویسندگان
چکیده
We investigate exact and analytic solutions for the field equations in teleparallel dark energy model, where physical space is described by locally rotational symmetric Bianchi I, III Kantowski-Sachs geometries. make use of property that a point-like Lagrangian exists description equations, variational symmetries are applied construction invariant functions conservation laws. The latter used derivation new classical function forms wavefunction quantum limit.
منابع مشابه
Cosmological structure formation in a homogeneous dark energy background
There is now strong evidence that the current energy density of the Universe is dominated by dark energy with an equation of state w < −1/3, which is causing accelerated expansion. The build-up of structure within such Universes is subject to significant ongoing study, particularly through the spherical collapse model. This paper aims to review and consolidate progress for cosmologies in which ...
متن کاملDark energy and cosmological solutions in second-order string gravity
We study the cosmological evolution based upon a D-dimensional action in low-energy effective string theory in the presence of second-order curvature corrections and a modulus scalar field (dilaton or compactification modulus). A barotropic perfect fluid coupled to the scalar field is also allowed. Phase space analysis and the stability of asymptotic solutions are performed for a number of mode...
متن کاملAnisotropic Dark Energy: Dynamics of Background and Perturbations
We investigate cosmologies where the accelerated expansion of the Universe is driven by a field with an anisotropic equation of state. We model such scenarios within the Bianchi I framework, introducing two skewness parameters to quantify the deviation of pressure from isotropy. We study the dynamics of the background expansion in these models. A special case of anisotropic cosmological constan...
متن کاملCosmological background solutions and cosmological backreactions
The cosmological backreaction proposal, which attempts to account for observations without a primary dark energy source in the stress-energy tensor, has been developed and discussed by means of different approaches. Here, we focus on the concept of cosmological background solutions in order to develop a framework to study the backreaction proposal.
متن کاملAnisotropic dark energy stars
A model of compact object coupled to inhomogeneous anisotropic dark energy is studied. It is assumed a variable dark energy that suffers a phase transition at a critical density. The anisotropic Λ−Tolman-Oppenheimer-Volkoff equations are integrated to know the structure of these objects. The anisotropy is concentrated on a thin shell where the phase transition takes place, while the rest of the...
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: Symmetry
سال: 2022
ISSN: ['0865-4824', '2226-1877']
DOI: https://doi.org/10.3390/sym14101974