Bouncing cosmology, F(T) teleparallel gravity and entropy of apparent horizon

2026/02/08 by S. I. Kruglov · 1 voice
Physics and Astronomy · #physics.gen-ph

paper · pdf · doi:10.1016/j.physleta.2026.131740

arxiv published 2026/02/08 · arxiv updated 2026/05/14

Abstract

Two parameters scale factor leading to bouncing cosmology is considered. We show that at some model parameters we obtain the deceleration parameter q₀≈ -0.535 at the current epoch which is in agreement with the Planck data. The equation for the transition point when the universe expands from acceleration to deceleration phases is obtained. We find the equation for the function F(T) within the teleparallel gravity with torsion field T which provides bouncing cosmology. For some parameters of the model the function F(T) was computed. At the same time, in the framework of entropic cosmology, the associated entropy was obtained for particular model parameters. The equation of state for dark energy was obtained.

Citations

• Bulk Viscosity and Thermodynamic Approaches to Singularity Resolution in Non-Metric Gravity
• New entropy, thermodynamics of apparent horizon and cosmology
• The Dynamics of Cosmic Evolution: Insights from Bouncing Cosmology
• Study of Cosmic Evolution admitting Thermodynamic Analysis
• f(T) teleparallel gravity and cosmology
• Holographic polytropic f(T)-gravity models
• Matter Bounce Cosmology with the f(T) Gravity
• Einstein's Other Gravity and the Acceleration of the Universe
• Horava-Lifshitz Dark Energy
• Matter Bounce in Horava-Lifshitz Cosmology
• Dark torsion as the cosmic speed-up
• Bouncing Cosmologies
• Cyclic Universes from General Collisionless Braneworld Models
• First Law of Thermodynamics and Friedmann Equations of Friedmann–Robertson–Walker Universe
• Parametric amplification of metric fluctuations through a bouncing phase
• From Big Crunch to Big Bang
• Absence of Singularity in Loop Quantum Cosmology
• Dynamic black-hole entropy
• A Cosmological Theory without Singularities
• Unified first law of black-hole dynamics and relativistic thermodynamics

Discussions

• S. I. Kruglov: Bouncing cosmology, $F(T)$ teleparallel gravity and entropy of apparent horizon https://arxiv.org/abs/2602.08141 https://arxiv.org/pdf/2602.08141 https://arxiv.org/html/2602.08141 [bsky, 0 points, 0 comments]

Related

• Comprehensive Study of Bouncing Cosmological Models in f(Q,T) Theory
• Exploring the bouncing cosmological models in symmetric teleparallel gravity
• Study of Cosmic Evolution admitting Thermodynamic Analysis
• Cosmological and Dynamical Aspects of Teleparallel Gravity and its Extension
• Bouncing Cosmology and Cosmological Dynamics in f(Q,T) Gravity