Thermodynamical Aspects of Gravity: New insights

Abstract

The fact that one can associate thermodynamic properties with horizons brings together principles of quantum theory, gravitation and thermodynamics and possibly offers a window to the nature of quantum geometry. This review discusses certain aspects of this topic concentrating on new insights gained from some recent work. After a brief introduction of the overall perspective, Sections 2 and 3 provide the pedagogical background on the geometrical features of bifurcation horizons, path integral derivation of horizon temperature, black hole evaporation, structure of Lanczos-Lovelock models, the concept of Noether charge and its relation to horizon entropy. Section 4 discusses several conceptual issues introduced by the existence of temperature and entropy of the horizons. In Section 5 we take up the connection between horizon thermodynamics and gravitational dynamics and describe several peculiar features which have no simple interpretation in the conventional approach. The next two sections describe the recent progress achieved in an alternative perspective of gravity. In Section 6 we provide a thermodynamic interpretation of the field equations of gravity in any diffeomorphism invariant theory and in Section 7 we obtain the field equations of gravity from an entropy maximization principle. The last section provides a summary.

85 pages; 5 figures; Invited Review to appear in Reports on Progress in Physics

References in corpus (35)

• The Unruh effect and its applications
• Thermodynamic Behavior of Friedmann Equation at Apparent Horizon of FRW Universe
• Unified First Law and Thermodynamics of Apparent Horizon in FRW 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
• Dark Energy and Gravity
• A Primer for Black Hole Quantum Physics
• Hawking Radiation of Apparent Horizon in a FRW Universe
• Thermodynamical Properties of Apparent Horizon in Warped DGP Braneworld
• Friedmann Equations and Thermodynamics of Apparent Horizons
• Deep Connection Between Thermodynamics and Gravity in Gauss-Bonnet Braneworld
• Thermodynamics of Apparent Horizon in Brane World Scenario
• Entropy of Null Surfaces and Dynamics of Spacetime
• Einstein's equations as a thermodynamic identity: The cases of stationary axisymmetric horizons and evolving spherically symmetric horizons
• Generalized Vaidya Spacetime in Lovelock Gravity and Thermodynamics on Apparent Horizon
• Holography of Gravitational Action Functionals
• Is gravitational entropy quantized ?
• The generalized second law of thermodynamics in generalized gravity theories
• F(R) gravity equation of state
• Thermodynamics of Apparent Horizon in Brane World Scenarios
• Thermodynamic structure of Lanczos-Lovelock field equations from near-horizon symmetries
• Gravity: A New Holographic Perspective
• Thermodynamics on the apparent horizon in generalized gravity theories
• Measurement of Quantum Fluctuations in Geometry
• Charged Rotating BTZ Black Hole and Thermodynamic Behavior of Field Equations at its Horizon
• First law of thermodynamics and Friedmann-like equations in braneworld cosmology
• Ten Proofs of the Generalized Second Law
• Radiation from collapsing shells, semiclassical backreaction and black hole formation
• Viscous Cosmology and Thermodynamics of Apparent Horizon
• Thermodynamic Interpretation of Field Equations at Horizon of BTZ Black Hole
• Why Does Gravity Ignore the Vacuum Energy?
• Gravity as an emergent phenomenon: A conceptual description
• Cosmological constant and vacuum energy
• A Strong Constraint on Ever-Present Lambda
• Local Approach to Hawking Radiation

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• Emergent gravity: From statistical point of view
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• Comments on the entropic gravity proposal
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• Modified gravity from an entropy functional
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• Apparent horizon and gravitational thermodynamics of Universe in the Eddington-Born-Infeld theory
• Temperature upper bound of an ideal gas
• Gravitational potential from maximum entropy principle
• Horizon-bound objects: Kerr--Vaidya solutions
• On the noncommutative eikonal
• Constraints on Tsallis cosmology using recent low and high redshift measurements
• Scalar-tensor theories of gravity from a thermodynamic viewpoint
• Implications of maximum acceleration on dynamics
• Cosmological scenario based on the particle creation and holographic equipartition
• Vacuum fluctuation of conformally coupled scalar field in FLRW space-times
• Modified Newtonian Dynamics as an entropic force
• Modeling the Past Hypothesis: A Mechanical Cosmology
• Superradiant instability of area quantized Kerr black hole with discrete reflectivity
• Recovering semiclassical Einstein's equation using generalized entropy
• Thermodynamical properties of nonsingular universe
• The Klein-Gordon equation in Machian model
• Warm Inflation in $f(Q)$ gravity
• Inflation from entropy
• Topological Signatures and Geometrothermodynamics of Critical Phenomena in Regularized Maxwell Black Holes
• Eckart heat-flux applicability in $F(\Phi ,X)R$ theories and the existence of temperature gradients
• Topological Classification of a 4D AdS Black Hole with Non-Minimal Maxwell Coupling
• Modified cosmology through generalized mass-to-horizon entropy: implications for structure growth and primordial gravitational waves
• Extended phase space thermodynamics of magnetized black holes with nonlinear electrodynamics
• Fixing cosmological constant on the event horizon
• On the correspondence between energy conservation and energy-momentum tensor conservation in cosmology
• What drives the time evolution of the spacetime geometry?
• Observational constraints on Luciano-Saridakis entropic cosmology
• How is the Presence of Horizons and Localized Matter Encoded in the Entanglement Entropy?
• Quantization of horizon entropy and the thermodynamics of spacetime
• Effective field theory description of horizon-fluid determines the scrambling time
• Black Hole Thermodynamics Based on Unitary Evolutions
• Gravity from thermodynamics in vacuum: Lorentz invariance and the role of Bel-Robinson tensor
• Thermodynamics of Barrow Einstein-power-Yang-Mills AdS black hole in the restricted phase space
• Casimir Energy of the Universe and the Dark Energy Problem
• Generalized Brans-Dicke theory from Verlinde's entropic gravity
• Generalized Smarr formula as a local identity for arbitrary dimensional black holes
• The Smarr formula within the Geroch-Held-Penrose formalism
• Linearized Einstein's Equation around pure BTZ from Entanglement Thermodynamics
• A dynamical systems perspective on the thermodynamics of late-time cosmology
• Embedding into flat spacetime and black hole thermodynamics
• The $\mu$-deformed Einstein field equations with $\mu$-dependent effective cosmological constant
• Spherically symmetric black holes in Gravity from Entropy and spontaneous emission
• Observational constraints on the modified cosmology inspired by string T-duality
• Entropic force law in the presence of a noncommutative inspired spacetime for a solar system scale
• Gravity from equilibrium thermodynamics of stretched light cones
• From minimal-length quantum theory to modified gravity
• Thermal nature of a generic null surface
• The two-component virial theorem and the acceleration-discrepancy relation
• Thermodynamics of spherically symmetric thin-shell spacetimes
• Stealth metastable state of scalar-tensor thermodynamics
• Possible fluid interpretation and tidal force equation on a generic null hypersurface in Einstein-Cartan theory
• Black holes and their horizons in semiclassical and modified theories of gravity
• Apparent horizon as a membrane
• Generalized Second Law and Thermodynamical Aspects of $f(Q,\mathcal{T})$ Gravity
• Correction to Hawking radiation in non-singular gravitational collapse
• Thermodynamic Split Conjecture and an Observational Test for Cosmological Entropy
• An approach to the quasi-equilibrium state of a self-gravitating system
• Thermodynamic Phase Transitions and Quantum Entropy Corrections in the Simpson-Visser Regular Black Hole
• Entropy function from the Einstein boundary term
• Statistical physics on Euclidean Snyder space: connections with the GUP and cosmological implications
• Penrose-Rindler equation and horizon thermodynamics of stationary black holes
• Energy Balance of a Boson Gas at Zero Temperature in Curved Spacetime
• Thermodynamic formulation of Cotton gravity in the Codazzi parametrization
• Uncertainty Principles and Maximum Entropic Force
• An Entropy-Based Criterion for Geodesic Incompleteness
• A winding number analysis of Schwarzschild black hole stability in light of Planck-scale modified kinematics
• Doubly Logarithmic Corrections to Radiation Domination from CET Ω: Theory and Planck/BBN Constraints
• The Cardy-Verlinde equation in a spherical symmetric gravitational collapse
• The Standard Model Symmetry and Qubit Entanglement
• Emergence of the cosmic space inspired by mass-to-horizon entropy
• On the nature of the black hole information problem
• Stability of the Einstein Static Universe in Zero-Point Length Cosmology with Topological Defects
• Landauer principle and the second law in a relativistic communication scenario
• Energy trapping from Hagedorn densities of states
• Hawking radiation from a hot NUT-Kerr-Newman-Kasuya-Anti-de Sitter black hole