scholarly journals Suppression of the shear viscosity in a “semi”-quark-gluon plasma

2008 ◽  
Vol 78 (7) ◽  
Author(s):  
Yoshimasa Hidaka ◽  
Robert D. Pisarski
Keyword(s):  
Shear Viscosity ◽  
Quark Gluon Plasma ◽  
Gluon Plasma

The shear viscosity of a chemically equilibrating quark-gluon plasma at finite baryon density

2013 ◽  
Vol 103 (5) ◽  
pp. 52001
Author(s):  
Nana Guan ◽  
Jiali Long ◽  
Yugang Ma ◽  
Ying Yuan
Keyword(s):  
Shear Viscosity ◽  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Baryon Density

scholarly journals Backreaction effects due to matter coupled higher derivative gravity

2015 ◽  
Vol 30 (16) ◽  
pp. 1550065 ◽  
Author(s):  
Lata Kh Joshi ◽  
P. Ramadevi
Keyword(s):  
Shear Viscosity ◽  
Quark Gluon Plasma ◽  
Transport Coefficients ◽  
Gluon Plasma ◽  
Entropy Density ◽  
Flow Measurements ◽  
Strongly Coupled ◽  
Higher Derivative ◽  
Scalar Matter ◽  
Dimensional Spacetime

AdS-hydrodynamics has proven to be a useful tool for obtaining transport coefficients observed in the collective flow of strongly coupled fluids like quark gluon plasma (QGP). Particularly, the ratio of shear viscosity to entropy density η/s obtained from elliptic flow measurements can be matched with the computation done in the dual gravity theory. The experimentally observed temperature dependence of η/s requires the study of scalar matter coupled AdS gravity including higher derivative curvature corrections. We obtain the backreaction to the metric for such a matter coupled AdS gravity in D-dimensional spacetime due to the higher derivative curvature corrections. Then, we present the backreaction corrections to shear viscosity η and entropy density s.

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