Energy equipartition and minimal radius in entropic gravity

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Sahlmann H
Zeitschrift: Physical Review D - Particles, Fields, Gravitation and Cosmology
Verlag: American Physical Society
Jahr der Veröffentlichung: 2011
Band: 84
Heftnummer: 10
ISSN: 1550-7998


Abstract


In this article, we investigate the assumption of equipartition of energy in arguments for the entropic nature of gravity. It has already been pointed out by other authors that equipartition is not valid for low temperatures. Here we additionally point out that it is similarly not valid for systems with bounded energy. Many explanations for black hole entropy suggest that the microscopic systems responsible have a finite dimensional state space, and thus finite maximum energy. Assuming this to be the case leads to drastic corrections to Newton's law for high gravitational fields, and, in particular, to a singularity in acceleration at finite radius away from a point mass. This is suggestive of the physics at the Schwarzschild radius. We show, however, that the location of the singularity scales differently. © 2011 American Physical Society.



FAU-Autoren / FAU-Herausgeber

Sahlmann, Hanno Prof. Dr.
Professur für Theoretische Physik


Zitierweisen

APA:
Sahlmann, H. (2011). Energy equipartition and minimal radius in entropic gravity. Physical Review D - Particles, Fields, Gravitation and Cosmology, 84(10). https://dx.doi.org/10.1103/PhysRevD.84.104010

MLA:
Sahlmann, Hanno. "Energy equipartition and minimal radius in entropic gravity." Physical Review D - Particles, Fields, Gravitation and Cosmology 84.10 (2011).

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Zuletzt aktualisiert 2019-20-03 um 15:53