Reconstruction of Lagrangian for various cosmological scenarios
arXiv:2309.06376 · doi:10.1016/j.dark.2023.101352
Abstract
In this paper, we explore a reconstruction scheme in the background of the gravity theory for different cosmological scenarios, where is the scalar torsion and is the trace of the energy-momentum tensor. Using the reconstruction technique Lagrangian is constructed for different cosmological eras such as dust, , perfect fluid, etc. Both minimal and non-minimal matter-coupled models are considered for this purpose. Different cosmological scenarios such as power law expansion, de-Sitter expansion, etc. have been considered, and using them Lagrangian functionals are constructed. Mathematical viabilities of all the constructed functionals have been investigated. The physical implications of the obtained solutions are discussed in detail. To check the cosmological compatibility of the constructed functionals we have generated plots of important parameters like the equation of state parameter and deceleration parameter. It is seen that the reconstructed models are perfectly compatible with the late-time accelerated expansion of the universe.
arXiv comment23 pages, 4 figures
References in corpus (47)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Measurements of Omega and Lambda from 42 High-Redshift Supernovae
- Planck 2013 results. XVI. Cosmological parameters
- Dynamics of dark energy
- f(R) Theories Of Gravity
- f(R) theories
- 4D Gravity on a Brane in 5D Minkowski Space
- Dark Matter Substructure in Galactic Halos
- f(R,T) gravity
- f(T) teleparallel gravity and cosmology
- Disappearing cosmological constant in f(R) gravity
- Dark torsion as the cosmic speed-up
- Einstein's Other Gravity and the Acceleration of the Universe
- Extra force in modified theories of gravity
- Cosmological viability of f(R)-gravity as an ideal fluid and its compatibility with a matter dominated phase
- Loop Quantum Gravity
- The teleparallel equivalent of general relativity
- f(R,L_m) gravity
- Teleparallel Gravity: From Theory to Cosmology
- Equation of state for dark energy in gravity
- Accelerating universe from F(T) gravity
- Cosmological reconstruction of realistic modified F(R) gravities
- Observational constraints on theory
- "Teleparallel" Dark Energy
- gravity and cosmology
- Cosmography of f(R) gravity
- Modelling wormholes in gravity
- Local determination of the Hubble constant and the deceleration parameter
- The dynamical behavior of theory
- Cosmological Solutions of Gravity
- On the LCDM Universe in f(R) gravity
- Gravitational Waves in Modified Teleparallel Theories
- Power-law cosmic expansion in f(R) gravity models
- Mimicking dark matter through a non-minimal gravitational coupling with matter
- New observational constraints on gravity through gravitational-wave astronomy
- A new approach to reconstruction methods in gravity
- Quark Stars in Gravity
- LCDM Model in f(T) Gravity: Reconstruction, Thermodynamics and Stability
- Cosmological bouncing solutions in extended teleparallel gravity theories
- Reconstruction, Thermodynamics and Stability of CDM Model in Gravity
- Statefinder Analysis of f(T) Cosmology
- Observational Constraint in gravity from the cosmic chronometers and some standard distance measurement parameters
- Reconstruction of Lagrangian for various cosmological scenario
- Cosmological reconstructed solutions in extended teleparallel gravity theories with a teleparallel Gauss-Bonnet term
- Thermodynamics in theories: Apparent horizon in the FLRW spacetime
- Accelerating models with a hybrid scale factor in extended gravity
- Coincidence Problem in f(T) Gravity Models