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The steps essentially involved in the evaluation of transport coefficients in linear response theory using Kubo formulas are to relate the defining {\em retarded} correlation function to the corresponding {\em time-ordered} one and to…

核理论 · 物理学 2013-08-09 Sourav Sarkar

We study the transport properties of an impurity in a sheared granular gas, in the framework of the Boltzmann equation for inelastic Maxwell models. We investigate here the impact of a nonequilibrium phase transition found in such systems,…

统计力学 · 物理学 2016-07-15 Vicente Garzó , Emmanuel Trizac

We present recent results on the calculation of transport coefficients for a pion gas at zero chemical potential in Chiral Perturbation Theory using Linear Response Theory. More precisely, we show the behavior of DC conductivity and shear…

高能物理 - 唯象学 · 物理学 2008-11-26 D. Fernandez-Fraile , A. Gomez Nicola

In this paper, we review and substantially develop the recently proposed "Microscopic Response Method", which has been devised to compute transport coefficients and especially associated temperature dependence in complex materials. The…

统计力学 · 物理学 2023-07-19 MingLiang Zhang , D. A. Drabold

Detailed calculations of the transport coefficients of a recently introduced particle-based model for fluid dynamics with a non-ideal equation of state are presented. Excluded volume interactions are modeled by means of biased stochastic…

软凝聚态物质 · 物理学 2010-12-06 Thomas Ihle

We calculate in this work the Navier-Stokes transport coefficients from the Boltzmann equation for $d$-dimensional inelastic Maxwell models. By granular gas we mean here a low density system of identical spheres that lose a fraction of…

统计力学 · 物理学 2015-06-18 Moisés G. Chamorro , Vicente Garzó , Francisco Vega Reyes

In this paper the Boltzmann equation describing the carrier transport in a semiconductor is considered. A modified Chapman-Enskog method is used, in order to find approximate solutions in the weakly non-homogeneous case. These solutions…

统计力学 · 物理学 2007-05-23 S. F. Liotta , A. Majorana

We compute the transport coefficients, namely, the coefficients of shear and bulk viscosities as well as thermal conductivity for hot and dense matter. The calculations are performed within the Polyakov quark meson model. The estimation of…

高能物理 - 唯象学 · 物理学 2018-01-22 Aman Abhishek , Hiranmaya Mishra , Sabyasachi Ghosh

We calculate the temperature dependence of the transport properties of heavy-fermion systems such as resistivity, optical conductivity, thermoelectric power, the electronic part of the thermal conductivity, and the "figure of merit." The…

强关联电子 · 物理学 2009-11-11 Claas Grenzebach , Frithjof B. Anders , Gerd Czycholl , Thomas Pruschke

We compute the transport coefficients (drag and momentum diffusion) of the low-lying heavy baryons $\Lambda_c$ and $\Lambda_b$ in a medium of light mesons formed at the later stages of high-energy heavy-ion collisions. We employ the…

高能物理 - 唯象学 · 物理学 2016-08-17 Laura Tolos , Juan M. Torres-Rincon , Santosh K. Das

The Navier--Stokes transport coefficients for a model of a confined quasi-two-dimensional granular binary mixture of inelastic hard spheres are determined from the Boltzmann kinetic equation. A normal or hydrodynamic solution to the…

软凝聚态物质 · 物理学 2021-02-25 Vicente Garzó , Ricardo Brito , Rodrigo Soto

The transport coefficients of quark matter at non-zero chemical potential and temperature are computed within the two-flavor Nambu--Jona-Lasinio model. We apply the Kubo formalism to obtain the thermal ($\kappa$) and electrical ($\sigma$)…

核理论 · 物理学 2020-06-30 Arus Harutyunyan , Dirk H. Rischke , Armen Sedrakian

We calculate two transport coefficients -- the shear viscosity over entropy ratio $\eta/s$ and the ratio of the electric conductivity to the temperature $\sigma_0/T$ -- of strongly interacting quark matter within the extended $N_f=3$…

核理论 · 物理学 2021-05-12 Olga Soloveva , David Fuseau , Jörg Aichelin , Elena Bratkovskaya

The goal of this note is to provide most of the technical details involved in the application of the Chapman-Enskog method to solve the revised Enskog equation to Navier-Stokes order. Explicit expressions for the transport coefficients and…

统计力学 · 物理学 2012-11-14 Vicente Garzó

New analytical expressions for parallel transport coefficients in multicomponent collisional plasmas are presented in this paper. They are improved versions of the expressions written in [V. M. Zhdanov. Transport Processes in Multicomponent…

等离子体物理 · 物理学 2021-06-30 S. Makarov , D. Coster , V. Rozhansky , A. Stepanenko , V. Zhdanov , E. Kaveeva , I. Senichenkov , X. Bonnin

The relativistic kinetic theory approach has been employed to study four well-known transport coefficients that characterize heat flow and diffusion for the case of a hot mixture constituting of nucleons and pions. Medium effects on the…

核理论 · 物理学 2019-07-04 Utsab Gangopadhyaya , Snigdha Ghosh , Sourav Sarkar

The diffusion transport coefficients of a binary granular suspension where one of the components is present in tracer concentration are determined from the (inelastic) Enskog kinetic equation. The effect of the interstitial gas on the solid…

软凝聚态物质 · 物理学 2023-08-30 Rubén Gómez González , Vicente Garzó

Transport properties of the multicomponent quantum many-body systems obeying Haldane's fractional exclusion statistics are studied in one dimension. By computing the finite-size spectrum under twisted boundary conditions, we explicitly…

凝聚态物理 · 物理学 2009-10-28 T. Fukui , N. Kawakami

We have theoretically investigated the finite system size effect of hadronic matter on its transport coefficients like shear viscosity, bulk viscosity, and electrical conductivity. We have used a Hadron Resonance Gas (HRG) model to…

高能物理 - 唯象学 · 物理学 2018-06-05 Subhasis Samanta , Sabyasachi Ghosh , Bedangadas Mohanty

We have attempted to review on microscopic calculation of transport coefficients like shear and bulk viscosities in the framework of hadron resonance gas model, where a special attention is explored on the effect of finite system size. The…

核理论 · 物理学 2019-11-01 Snigdha Ghosh , Subhasis Samanta , Sabyasachi Ghosh , Hiranmaya Mishra