Gauge/gravity duality and thermalization of a boost-invariant perfect fluid

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dc.creatorJanik, Romuald A.
dc.creatorPeschanski, Robi
dc.date2006-06-16
dc.date2006-07-11
dc.date.accessioned2026-07-07T11:27:30Z
dc.date.available2026-07-07T11:27:30Z
dc.descriptionWe derive the equation for the quasi-normal modes corresponding to the scalar excitation of a black hole moving away in the fifth dimension. This geometry is the AdS/CFT dual of a boost-invariant expanding perfect fluid in N=4 SUSY Yang-Mills theory at large proper-time. On the gauge-theory side, the dominant solution of the equation describes the decay back to equilibrium of a scalar excitation of the perfect fluid. Its characteristic proper-time can be interpreted as a thermalization time of the perfect fluid, which is a universal (and numerically small) constant in units of the unique scale of the problem. This may provide a new insight on the short thermalization-time puzzle encountered in heavy-ion collision phenomenology. A nontrivial scaling behaviour in proper-time is obtained which can be interpreted in terms of a slowly varying adiabatic approximation.
dc.description11 pages, no figures; v2: misprints corrected, results unchanged; v3: reference added
dc.identifierhttps://arxiv.org/abs/hep-th/0606149
dc.identifierhttp://arxiv.org/abs/hep-th/0606149
dc.identifierPhys.Rev.D74:046007,2006
dc.identifierdoi:10.1103/PhysRevD.74.046007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196166
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleGauge/gravity duality and thermalization of a boost-invariant perfect fluid
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