Landauer entropy of spacetime
General Relativity and Quantum Cosmology
2026-05-29 v2 Mathematical Physics
math.MP
Abstract
Based on Landauer's principle, we provide a geometrical definition for the entropy of a given static, spherically symmetric spacetime. Considering a congruence of geodesics across a surface, one defines the entropy of a congruence as the surface integral of the entropy of the constituent geodesics. Under certain mild assumptions, we establish a second law for the entropy function thus defined (Landauer entropy), and relate it to Bekenstein-Hawking entropy.
Cite
@article{arxiv.2605.22172,
title = {Landauer entropy of spacetime},
author = {J. M. Isidro and B. Koch and A. Rincon},
journal= {arXiv preprint arXiv:2605.22172},
year = {2026}
}
Comments
12 pages; 3 tables; refs. added