Stringy Pomeron: Entropy and Shear Viscosity
Qian, Yachao · Zahed, Ismail
Original · EN
We model the soft pomeron contribution to dipole-dipole scattering as a closed string exchange in AdS5 with a wall. The exchange of closed and long strings is characterized by an apparent Unruh temperature and entropy that are caused by the rapidity interval chi of the collision. We show that the primordial transverse shear viscosity to transverse entropy density ratio is eta-perp/s-perp=(pi k/chi)²/(8 pi) for scattering dipoles of N-ality k, vanishing at large chi.
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