English

Friedmann Equations from Entropic Force

High Energy Physics - Theory 2010-03-10 v2 General Relativity and Quantum Cosmology

Abstract

In this note by use of the holographic principle together with the equipartition law of energy and the Unruh temperature, we derive the Friedmann equations of a Friedmann-Robertson-Walker universe.

Cite

@article{arxiv.1001.3470,
  title  = {Friedmann Equations from Entropic Force},
  author = {Rong-Gen Cai and Li-Ming Cao and Nobuyoshi Ohta},
  journal= {arXiv preprint arXiv:1001.3470},
  year   = {2010}
}

Comments

latex, 8 pages, v2: minor modifications and to appear in PRD (Rapid Communication)

R2 v1 2026-06-21T14:36:56.586Z