A study of Universal thermodynamics in Lanczos–Lovelock gravity

2015/05/25 by Saugata Mitra, Subhajit Saha, Subenoy Chakraborty
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Apparent horizon #Black Holes and Theoretical Physics #Cosmology #Cosmology and Gravitation Theories #Dark energy #Entropy (arrow of time) #Event (particle physics) #Event horizon #Extended irreversible thermodynamics #First law of thermodynamics #Friedmann–Lemaître–Robertson–Walker metric #Mathematical physics #Non-equilibrium thermodynamics #Physics #Quantum mechanics #Second law of thermodynamics #Theoretical physics #Thermodynamics #Universe #gr-qc

paper · pdf · doi:10.1007/s10714-015-1913-5

published as General Relativity and Gravitation 47, 69 (2015)

openalex publication_date 2015/05/25 · arxiv created 2016/10/28 · arxiv updated 2016/11/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

A study of Universal thermodynamics is done in Lanczos-Lovelock gravity. The Universe is chosen as FRW model bounded by apparent or event horizon. The unified first law is examined, assuming extended Hawking temperature on the horizon. As a result there is a modification of Bekenstein entropy on the horizons. Further the validity of generalized second law of thermodynamics and thermodynamical equilibrium are also investigated for perfect fluid (with constant equation of state), modified chaplygin gas model and holographic dark energy model.

Citations

• Superacceleration as the signature of a dark sector interaction
• Unified first law and the thermodynamics of the apparent horizon in the FRW universe
• The generalized second law of thermodynamics in Hořava-Lifshitz cosmology
• Evolution of spacetime arises due to the departure from holographic equipartition in all Lanczos-Lovelock theories of gravity
• Transition of the dark energy equation of state in an interacting holographic dark energy model
• Unified first law of black-hole dynamics and relativistic thermodynamics
• Thermodynamics of Lema i tre−Tolman−Bondi Model
• The holographic principle
• The Thermodynamics of Black Holes
• Particle creation by black holes
• Generalized second law of thermodynamics in black-hole physics
• The world as a hologram
• Black Holes and Entropy
• Geometrical variables with direct thermodynamic significance in Lanczos-Lovelock gravity