Hot Quarks 2014: Workshop for young scientists on the physics of ultrarelativistic nucleus-nucleus collisions | |
Electric Conductivity of the QGP | |
Puglisi, Armando^1,2 ; Plumari, Salvatore^1,2 ; Greco, Vincenzo^1,2 | |
Department of Physics and Astronomy, University of Catania, Via Santa Sofia 64, Catania | |
I-95125, Italy^1 | |
Laboratorio Nazionale Del Sud, INFN-LNS, Via Santa Sofia 63, Catania | |
I-95125, Italy^2 | |
关键词: Analytic formula; Boltzmann transport; Coupling constants; Numerical results; Periodic boundary conditions; Quark-gluon plasma; Relaxation time approximation; Transport coefficient; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/612/1/012057/pdf DOI : 10.1088/1742-6596/612/1/012057 |
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来源: IOP | |
【 摘 要 】
The transport coefficients of strongly interacting matter have attracted a great interest in the field of Quark-Gluon Plasma (QGP). In this work we compute electric conductivity σelsolving numerically the Relativistic Boltzmann Transport (RBT) equation in a uniform box with periodic boundary conditions considering 2 - body scatterings. We compare numerical results obtained using two methods, Green-Kubo correlator and E-field method, with analytic formulas in Relaxation Time Approximation (RTA). We present results for the realistic case of the QGP system considering both a quasi-particle model tuned to lattice QCD thermodynamics as well as the case of a pQCD gas with a running coupling constant. Calculations based on RTA underestimate σelof about 60%.
【 预 览 】
Files | Size | Format | View |
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Electric Conductivity of the QGP | 776KB | download |