Baryogenesis in non-extensive Tsallis Cosmology
arXiv:2204.02723 · doi:10.1016/j.physletb.2022.137352
Abstract
Non-extensive Tsallis thermostatistics is a widespread paradigm to describe large-scale gravitational systems. In this work we use Tsallis Cosmology to study thermodynamic gravity and derive modified Friedmann equations. We show that corrections induced by non-extensivity affect the Hubble function evolution during the radiation-dominated epoch. In turn, this leads to non-trivial modifications of the mass density and pressure content of the Universe, which provide a viable mechanism allowing for baryogenesis, even in the presence of the standard interaction between the Ricci scalar and baryon current. By demanding consistency with current observational bounds on baryogenesis, we constrain Tsallis parameter to be . Based on the recently established connection between Tsallis thermostatistics and the quantum gravitational generalization of the uncertainty principle at Planck scale (GUP), we finally show that this bound is in agreement with the estimation of the GUP parameter predicted by many quantum gravity models.
9 pages, 1 figure, 1 table
References in corpus (15)
- Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
- Thermodynamic Behavior of Friedmann Equation at Apparent Horizon of FRW Universe
- Matter and Antimatter in the Universe
- Friedmann Equations of FRW Universe in Scalar-tensor Gravity, f(R) Gravity and First Law of Thermodynamics
- Thermodynamic route to Field equations in Lanczos-Lovelock Gravity
- Thermodynamical Properties of Apparent Horizon in Warped DGP Braneworld
- Modified cosmology from extended entropy with varying exponent
- GUP parameter from quantum corrections to the Newtonian potential
- Superstatistics in high energy physics: Application to cosmic ray energy spectra and e+e- annihilation
- Thermodynamical First Laws of Black Holes in Quadratically-Extended Gravities
- Correspondence of cosmology from non-extensive thermodynamics with fluids of generalized equation of state
- Big Bang Nucleosynthesis constraints on higher-order modified gravities
- New explanation for accelerated expansion and flat galactic rotation curves
- Long-range fluctuation-induced forces in driven electrolytes
- Tsallis thermostatics as a statistical physics of random chains
Cited by in corpus (24)
- 30 years in: Quo vadis generalized uncertainty principle?
- Cosmic evolution and thermal stability of Barrow holographic dark energy in nonflat Friedmann-Robertson-Walker Universe
- Alleviating both and tensions in Tsallis cosmology
- Slow-roll inflation and growth of perturbations in Kaniadakis modification of Friedmann cosmology
- Constraining Barrow entropy-based Cosmology with power-law inflation
- Black hole geometrothermodynamics and critical phenomena: a look from Tsallis entropy-based perspective
- Saez-Ballester gravity in Kantowski-Sachs Universe: a new reconstruction paradigm for Barrow Holographic Dark Energy
- Generalized interacting Barrow Holographic Dark Energy: cosmological predictions and thermodynamic considerations
- Inflation Based on the Tsallis Entropy
- Lagrangian reconstruction of Barrow holographic dark energy in interacting tachyon model
- Lagrangian formulation of the Tsallis entropy
- Generalized Uncertainty Principle mimicking dynamical Dark Energy: matter perturbations and gravitational wave data analysis
- Cosmology from String T-duality and zero-point length
- Look beyond additivity and extensivity of entropy for black hole and cosmological horizons
- Phase transitions, critical behavior and microstructure of the FRW universe in the framework of higher order GUP
- Quantum Entropy-Driven Modifications to Holographic Dark Energy in Gravity
- Topological and optical signatures of modified black-hole entropies
- Kaniadakis entropy-based characterization of IceCube PeV neutrino signals
- Hints Beyond CDM from Barrow and Tsallis Holographic Dark Energy with GO cutoff
- Constraints on Tsallis cosmology using recent low and high redshift measurements
- Constraining Zero-Point Length from Gravitational Baryogenesis
- Gravitational baryogenesis beyond the spectator approximation
- Observational constraints on Luciano-Saridakis entropic cosmology
- Matter-antimatter asymmetry in generalized coupling theories