2005/03/30 by Gert Aarts, Jose M. Martinez Resco, Jose M. Martínez Resco
Physics and Astronomy · #Black Holes and Theoretical Physics #Coupling constant #Electrical resistivity and conductivity #Fermion #Gauge (firearms) #Gauge theory #High-Energy Particle Collisions Research #Materials science #Mathematical physics #Physics #Quantum Chromodynamics and Particle Interactions #Quantum electrodynamics #Quantum mechanics #Viscosity #hep-ph #nucl-th
paper · pdf · doi:10.1088/1126-6708/2005/03/074
published as JHEP0503:074,2005 · 38 pages, typos corrected, JHEP version
openalex publication_date 2005/03/30 · arxiv created 2005/04/15 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We compute the shear viscosity and the electrical conductivity in gauge theories with massive fermions at leading order in the large Nf expansion. The calculation is organized using the 1/Nf expansion of the 2PI effective action to next-to-leading order. We show explicitly that the calculation is gauge fixing independent and consistent with the Ward identity. We find that these transport coefficients depend in a nontrivial manner on the coupling constant and fermion mass. For large mass, both the shear viscosity and the electrical conductivity go to zero.