scholarly journals Relativistic second-order dissipative hydrodynamics from Zubarev’s non-equilibrium statistical operator

2022 ◽  
pp. 168755
Author(s):  
Arus Harutyunyan ◽  
Armen Sedrakian ◽  
Dirk H. Rischke
Keyword(s):  
Second Order ◽  
Statistical Operator ◽  
Non Equilibrium

scholarly journals Bulk Viscosity of Hot Quark Plasma from Non-Equilibrium Statistical Operator

Particles ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 212-229 ◽  
Author(s):  
Arus Harutyunyan ◽  
Armen Sedrakian
Keyword(s):  
Bulk Viscosity ◽  
Mott Transition ◽  
Current Understanding ◽  
Correct Result ◽  
Transition Line ◽  
Conserved Charges ◽  
Statistical Operator ◽  
Detailed Derivation ◽  
Non Equilibrium

We provide a discussion of the bulk viscosity of two-flavor quark plasma, described by the Nambu–Jona-Lasinio model, within the framework of Kubo-Zubarev formalism. This discussion, which is complementary to our earlier study, contains a new, detailed derivation of the bulk viscosity in the case of multiple conserved charges. We also provide some numerical details of the computation of the bulk viscosity close to the Mott transition line, where the dissipation is dominated by decays of mesons into quarks and their inverse processes. We close with a summary of our current understanding of this quantity, which stresses the importance of loop resummation for obtaining the qualitatively correct result near the Mott line.

scholarly journals Stability of algebraic non-equilibrium second-order closure models

2001 ◽  
Vol 3 (1-2) ◽  
pp. 33-50 ◽  
Author(s):  
Hans Burchard ◽  
Eric Deleersnijder
Keyword(s):  
Second Order ◽  
Closure Models ◽  
Non Equilibrium

Semiconductor models for first and second order non-equilibrium phase transitions

1979 ◽  
Vol 365 (1723) ◽  
pp. 495-510 ◽  
Keyword(s):  
Phase Transitions ◽  
General Principle ◽  
Impact Ionization ◽  
Equilibrium Phase ◽  
Steady States ◽  
Second Order ◽  
Far From Equilibrium ◽  
P Type ◽  
Non Equilibrium

Non-equilibrium phase transitions in semiconductors due to impact ionization from traps have been obtained theoretically, and are discussed in detail. They include first and second order phase transitions, and develop previous work, which was restricted to second order phase transitions involving band-band processes. The models include switching transitions from non-conducting to conducting states, and from n- to p-type states. They furnish simple illustrations of the general principle that a system which is driven far from equilibrium can exhibit new stable steady states.

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