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We consider a holographic dual of hydrodynamics of N = 4 SYM plasma that undergoes non-isotropic three-dimensional expansion relevant to RHIC fireball. Our model is a natural extension of the Bjorken's one-dimensional expansion, and it describes an elliptic flow whose v 2 and eccentricity are given in terms of anisotropy parameters. Holographic(More)
In the context of holographic QCD we analyze Sakai-Sugimoto's chiral model at finite baryon density and zero temperature. The baryon number density is introduced through compact D4 wrapping S 4 at the tip of D8-D8. Each baryon acts as a chiral point-like source distributed uniformly over R 3 , and leads a non-vanishing U (1) V potential on the brane. For(More)
We investigate dense matter in the context of Sakai and Sugimoto's holographic model of QCD at zero temperature but finite baryon density in the Wigner-Seitz approximation. In bulk, baryons are treated as instantons on S 3 ×R 1 in each Wigner-Seitz cell. At low density, the energy density varies as n 1/3 B while at high density it varies as n 5/3 B. In(More)
The GSO projection in the twisted sector of orbifold background is sometimes subtle and incompatible descriptions are found in literatures. Here, from the equivalence of partition functions in NSR and GS formalisms, we give a simple rule of GSO projection for the chiral rings of string theory in C r /Z n , r = 1, 2, 3. Necessary constructions of chiral(More)