Reconstructing ΛCDM f(T) gravity model with observational constraints

Dinesh Chandra Maurya

2023International Journal of Geometric Methods in Modern Physics10 citationsDOI

Abstract

By restricting [Formula: see text] in this study, we rebuild a [Formula: see text] gravity function from a [Formula: see text]CDM model. The equation for obtaining the [Formula: see text] function is [Formula: see text], where [Formula: see text] and [Formula: see text] are positive constants. A flat FLRW space-time metric has been taken into account, and modified field equations for the Hubble function and scaling factor have been solved. With two observational datasets, [Formula: see text] and SNe Ia data, we placed observational constraints on the Hubble function and apparent magnitude [Formula: see text] and we were able to determine the model parameters with the best match. These numbers have been used to analyze a number of cosmic phenomena occurring in the expanding cosmos. We have discovered a [Formula: see text] model-closed transit phase decelerating to accelerating universe model.

Topics & Concepts

Friedmann–Lemaître–Robertson–Walker metricPhysicsHubble's lawScale factor (cosmology)UniverseMetric (unit)Metric expansion of spaceMathematical physicsFunction (biology)CosmologyTheoretical physicsDark energyAstrophysicsBiologyEconomicsOperations managementEvolutionary biologyCosmology and Gravitation TheoriesBlack Holes and Theoretical PhysicsGeophysics and Gravity Measurements