Casimir energy in the gauge/gravity description of Bjorken flow?

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dc.creatorKajantie, K.
dc.creatorLouko, Jorma
dc.creatorTahkokallio, T.
dc.date2008-09-29
dc.date2009-01-04
dc.date.accessioned2026-07-07T12:30:23Z
dc.date.available2026-07-07T12:30:23Z
dc.descriptionIn the AdS/CFT description of four-dimensional QCD matter undergoing Bjorken expansion, does the holographic energy-momentum tensor contain a Casimir-type contribution that should not be attributed to thermal matter? When the bulk isometry ansatz that yielded such a Casimir term for (1+1)-dimensional boundary matter is generalised to a four-dimensional boundary, we show that a Casimir term does not arise, owing to singularities in the five-dimensional bulk solution. The geometric reasons are traced to a difference between the isometries of AdS_3 and AdS_{d+1} for d>=3.
dc.description14 pages. v3: Relationship to the work in [3] clarified. Typos corrected. Published version
dc.identifierhttps://arxiv.org/abs/0809.5033
dc.identifierhttp://arxiv.org/abs/0809.5033
dc.identifierPhys.Rev.D78:126012,2008
dc.identifierdoi:10.1103/PhysRevD.78.126012
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/216114
dc.subjectHigh Energy Physics - Theory
dc.titleCasimir energy in the gauge/gravity description of Bjorken flow?
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