Transport Coefficients near the Liquid-Gas Critical Point

1968 ◽  
Vol 166 (1) ◽  
pp. 89-101 ◽  
Author(s):  
Leo P. Kadanoff ◽  
Jack Swift
Keyword(s):  
Critical Point ◽  
Transport Coefficients

On the transport properties of a Van der Waals gas near the critical point

1968 ◽  
Vol 46 (24) ◽  
pp. 2821-2841 ◽  
Author(s):  
Luis de Sobrino
Keyword(s):  
Thermal Conductivity ◽  
Time Dependence ◽  
Critical Point ◽  
Bulk Viscosity ◽  
Shear Viscosity ◽  
Van Der Waals ◽  
Transport Coefficients ◽  
Hydrodynamic Equations ◽  
Van Der Waals Gas ◽  
Critical Fluctuations

A calculation of the critical anomalies of the transport coefficients of a simple fluid based on a microscopic model of a nonequilibrium Van der Waals gas is presented. It is found that, in the gas region, the anomalous bulk viscosity behaves as (T – Tc)−2. Both the anomalous thermal conductivity and shear viscosity behave as In (T – Tc)−1, but the anomaly in the shear viscosity is much smaller than the anomaly in the thermal conductivity. The results appear to indicate that previous calculations, in which the time dependence of the critical fluctuations is obtained from hydrodynamic equations, are not valid.

scholarly journals Transport near the chiral critical point

2022 ◽  
Vol 258 ◽  
pp. 05008
Author(s):  
Alexander Soloviev
Keyword(s):  
Critical Point ◽  
Order Parameter ◽  
Transport Coefficients ◽  
Mean Field ◽  
Heavy Ion ◽  
Heavy Ion Collision ◽  
Hydrodynamic Equations ◽  
Soft Pion ◽  
Ion Collision

The evolution of a heavy ion collision passes close to the O(4) critical point of QCD, where fluctuations of the order parameter are expected to be enhanced. Using the appropriate stochastic hydrodynamic equations in mean field near the the pseudo-critical point, we compute how these enhanced fluctuations modify the transport coefficients of QCD. Finally, we estimate the expected critical enhancement of soft pion yields, which provides a plausible explanation for the excess seen in experiment relative to ordinary hydrodynamic computations.

scholarly journals The magnetic effect on a strongly correlated system with two currents near the quantum critical point from holography

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Jaeha Lee ◽  
Sang-Jin Sin ◽  
Geunho Song
Keyword(s):  
Black Hole ◽  
Critical Point ◽  
Transport Coefficients ◽  
Quantum Critical Point ◽  
Magnetic Effect ◽  
Special Point ◽  
Strongly Correlated ◽  
Strongly Correlated System ◽  
Quantum Critical ◽  
Conserved Currents

Abstract We study the magnetic effect in a strongly interacting system with two conserved currents near the quantum critical point (QCP). For this purpose, we introduce the hyper-scaling violation geometry with the black hole. Considering the perturbation near the background geometry, we compute the transport coefficients using holographic methods. We calculated the magneto-transport for general QCP and discuss the special point $(z,\theta)=(3/2,1)$, where the data of Dirac material have previously been well described.

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