We use cookies to ensure that we give you the best experience on our website. By continuing to browse this repository, you give consent for essential cookies to be used. You can read more about our Privacy and Cookie Policy.

Durham Research Online
You are in:

Notes on space-time thermodynamics and the observer-dependence of entropy.

Marolf, D. and Minic, D. and Ross, S. F. (2004) 'Notes on space-time thermodynamics and the observer-dependence of entropy.', Physical review D : particles and fields., 69 (6). 064006.


Because of the Unruh effect, accelerated and inertial observers differ in their description of a given quantum state. The implications of this effect are explored for the entropy assigned by such observers to localized objects that may cross the associated Rindler horizon. It is shown that the assigned entropies differ radically in the limit where the number of internal states n becomes large. In particular, the entropy assigned by the accelerated observer is a bounded function of n. General arguments are given along with explicit calculations for free fields. The implications for discussions of the generalized second law and proposed entropy bounds are also discussed.

Item Type:Article
Full text:(VoR) Version of Record
Download PDF
Publisher Web site:
Publisher statement:© 2004 by The American Physical Society. All rights reserved.
Date accepted:No date available
Date deposited:20 September 2010
Date of first online publication:March 2004
Date first made open access:No date available

Save or Share this output

Look up in GoogleScholar