7 papers
Generalized Mass-to-Horizon Entropy and Horizon Thermodynamics
Smeehan S Shameeem, Priyesh K, Krishna P. B +1
We investigate the cosmological implications of generalized mass-to-horizon entropy, a two-parameter extension of the standard Bekenstein entropy based on the mass-to-horizon relat…
Subtleties in non-equilibrium horizon thermodynamics of modified gravity theories
Vishnu A Pai, Vishnu S Namboothiri, Titus K Mathew
Thermodynamic interpretations of gravity often arise from applying the Clausius relation to spacetime horizons. In modified gravity theories with higher-order equations of motion,…
Cosmology with non-linear barotropic Israel-Stewart fluid with causal relaxation time
Vishnu A Pai, Titus K Mathew
We derive an extended expression for the relaxation time of a barotropic Israel-Stewart (IS) fluid using the non-linear causality constraint, and propose a new formulation for mode…
Evolution of fluctuations in horizon energy and its dependence on the degrees of freedom
Vishnu S Namboothiri, Krishna P B, Adithya P S +1
Taking account of the thermal nature of the Hubble horizon of the expanding universe, we analysed the evolution of relative fluctuations of horizon energy. For this analysis, we us…
vCF: Extending CDM into a Unified Model with Particle Creation
Vishnu A Pai, Titus K Mathew
We present a novel extended version of the CDM model that provides analytical solution for Hubble parameter uniting all epochs of cosmic evolution starting from inflation to la…
Emergence of space from the first law of thermodynamics in the braneworld scenarios
Krishna P. B., Adithya P S, Titus K. Mathew
Expansion of the universe is caused by the departure from the holographic equipartition. This principle, the law of emergence, first postulated in the context of Einstein's gravity…