Details

Autor(en) / Beteiligte

• Policastro, G
• Son, D T
• Starinets, A O

Titel

Shear viscosity of strongly coupled N = 4 supersymmetric Yang-Mills plasma

Ist Teil von

• Physical review letters, 2001-08, Vol.87 (8), p.081601-081601, Article 081601

Ort / Verlag

United States

Erscheinungsjahr

2001

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• Using the anti-de Sitter/conformal field theory correspondence, we relate the shear viscosity eta of the finite-temperature N = 4 supersymmetric Yang-Mills theory in the large N, strong-coupling regime with the absorption cross section of low-energy gravitons by a near-extremal black three-brane. We show that in the limit of zero frequency this cross section coincides with the area of the horizon. From this result we find eta = pi / 8N(2)T3. We conjecture that for finite 't Hooft coupling g(2)(YM)N the shear viscosity is eta = f(g(2)(YM)N)N2T3, where f(x) is a monotonic function that decreases from O(x(-2)ln(-1)(1/x)) at small x to pi/8 when x-->infinity.