Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2006-05-06
Phys.Lett.B640:108-115,2006
Physics
High Energy Physics
High Energy Physics - Theory
15 pages, latex
Scientific paper
10.1016/j.physletb.2006.07.043
We study transport properties of the finite temperature Sakai-Sugimoto model. The model represents a holographic dual to 4+1 dimensional supersymmetric SU(N_c) gauge theory compactified on a circle with anti-periodic boundary conditions for fermions, coupled to N_f left-handed quarks and N_f right-handed quarks localized at different points on the compact circle. We analytically compute the speed of sound and the sound wave attenuation in the quenched approximation. Since confinement/deconfinement (and the chiral symmetry restoration) phase transitions are first order in this model, we do not see any signature of these phase transitions in the transport properties.
Benincasa Paolo
Buchel Alex
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