Transport coefficients of quark-gluon plasma

Pramana ◽  
1985 ◽  
Vol 25 (6) ◽  
pp. 673-683 ◽  
Author(s):  
S Chakrabarty
Keyword(s):  
Quark Gluon Plasma ◽  
Transport Coefficients ◽  
Gluon Plasma

scholarly journals Hydrodynamic transport coefficients for the non-conformal quark-gluon plasma from holography

2015 ◽  
Vol 2015 (2) ◽  
Author(s):  
Stefano I. Finazzo ◽  
Romulo Rougemont ◽  
Hugo Marrochio ◽  
Jorge Noronha
Keyword(s):  
Quark Gluon Plasma ◽  
Transport Coefficients ◽  
Gluon Plasma ◽  
Hydrodynamic Transport

scholarly journals Drag force on heavy quarks and spatial string tension

2018 ◽  
Vol 33 (06) ◽  
pp. 1850041 ◽  
Author(s):  
Oleg Andreev
Keyword(s):  
String Duality ◽  
Drag Coefficient ◽  
Heavy Quark ◽  
Quark Gluon Plasma ◽  
Diffusion Coefficients ◽  
Transport Coefficients ◽  
Gluon Plasma ◽  
String Tension ◽  
Heavy Quarks ◽  
Strongly Coupled

Heavy quark transport coefficients in a strongly coupled Quark–Gluon Plasma can be evaluated using a gauge/string duality and lattice QCD. Via this duality, one can argue that for low momenta the drag coefficient for heavy quarks is proportional to the spatial string tension. Such a tension is well-studied on the lattice that allows one to straightforwardly make non-perturbative estimates of the heavy quark diffusion coefficients near the critical point. The obtained results are consistent with those in the literature.

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.

scholarly journals From noninteracting to interacting picture of quark–gluon plasma in the presence of a magnetic field and its fluid property

2021 ◽  
pp. 2150044
Author(s):  
Jayanta Dey ◽  
Sarthak Satapathy ◽  
Ankita Mishra ◽  
Souvik Paul ◽  
Sabyasachi Ghosh
Keyword(s):  
Magnetic Field ◽  
Energy Density ◽  
Quark Gluon Plasma ◽  
Transport Coefficients ◽  
Average Energy ◽  
Gluon Plasma ◽  
Quark Condensate ◽  
Lattice Quantum Chromodynamics ◽  
Field Dependent ◽  
Lattice Quantum

We have attempted to build a parametric-based simplified and analytical model to map the interaction of quarks and gluons in the presence of magnetic field, which has been constrained by quark condensate and thermodynamical quantities like pressure, energy density, etc., obtained from the calculation of lattice quantum chromodynamics (QCDs). To fulfill that mapping, we have assumed a parametric temperature and magnetic field-dependent degeneracy factor, average energy, momentum and velocity of quarks and gluons. Implementing this QCD interaction in calculation of transport coefficient at finite magnetic field, we have noticed that magnetic field and interaction both are two dominating sources, for which the values of transport coefficients can be reduced. Though the methodology is not so robust, but with the help of its simple parametric expressions, one can get a quick rough estimation of any phenomenological quantity, influenced by temperature and magnetic field-dependent QCD interaction.

scholarly journals Exploring non-equilibrium quark-gluon plasma effects on charm transport coefficients

2020 ◽  
Vol 101 (4) ◽  
Author(s):  
Taesoo Song ◽  
Pierre Moreau ◽  
Joerg Aichelin ◽  
Elena Bratkovskaya
Keyword(s):  
Quark Gluon Plasma ◽  
Transport Coefficients ◽  
Gluon Plasma ◽  
Plasma Effects ◽  
Non Equilibrium
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