Causal entropy bound for a spacelike region

Citation
R. Brustein et G. Veneziano, Causal entropy bound for a spacelike region, PHYS REV L, 84(25), 2000, pp. 5695-5698
Citations number
27
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
84
Issue
25
Year of publication
2000
Pages
5695 - 5698
Database
ISI
SICI code
0031-9007(20000619)84:25<5695:CEBFAS>2.0.ZU;2-6
Abstract
The identification of a causal-connection scale motivates us to propose a n ew covariant bound on entropy within a generic spacelike region; This "caus al entropy bound," scaling as root EV, and;thus lying around the geometric mean of Bekenstein's S/ER and holographic SIA bounds, is checked in various "critical" situations. In the case of limited gravity, Bekenstein's bound is the strongest while naive holography is the weakest. In the case of stro ng gravity, our bound and Bousso's holographic bound are stronger than Beke nstein's, while naive holography is too tight, and hence typically wrong.