Holography, dimensional reduction and the Bekenstein bound

Dongsu Bak, Ho Ung Yee

Research output: Contribution to journalArticlepeer-review


We consider dimensional reduction of the lightlike holography of the covariant entropy bound from D + 1 dimensional geometry of M × S 1 to the D dimensional geometry M. With a warping factor, the local Bekenstein bound in D + 1 dimensions leads to a more refined form of the bound from the D dimensional view point. With this new local Bekenstein bound, it is quite possible to saturate the lightlike holography even with nonvanishing expansion rate. With a Kaluza-Klein gauge field, the dimensional reduction implies a stronger bound where the energy momentum tensor contribution is replaced by the energy momentum tensor with the electromagnetic contribution subtracted.

Original languageEnglish
Pages (from-to)1371-1385
Number of pages15
JournalJournal of High Energy Physics
Issue number4
StatePublished - 1 Apr 2004


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