Is gravity entropic force?

Abstract

If we assume that the source of thermodynamic system, $\rho$ and $p$, are also the source of gravity, thermal quantities, such as entropy, temperature, and chemical potential, can induce effects of gravity, or gravity can induce thermal effects. We find only for systems with constant temperature and zero chemical potential, gravity can be seen as an entropic force. The case for Newtonian approximation is discussed.

6 pages

References in corpus (7)

• Thermodynamic route to Field equations in Lanczos-Lovelock Gravity
• Einstein's equations as a thermodynamic identity: The cases of stationary axisymmetric horizons and evolving spherically symmetric horizons
• F(R) gravity equation of state
• Thermal time and the Tolman-Ehrenfest effect: temperature as the "speed of time"
• Gravity is not an entropic force
• Inflation in Entropic Cosmology: Primordial Perturbations and non-Gaussianities
• Entropic Corrections to Einstein Equations

Cited by in corpus (1)

• Analogy of QCD hadronization and Hawking-Unruh radiation at NICA