Antiscreening of the Ampere force in QED and QCD plasmas

Abstract

The static forces between electric charges and currents are modified at the loop level by the presence of a plasma. While electric charges are screened, currents are not. The effective coupling constant at long distances is enhanced in both cases as compared to the vacuum, and by different amounts, a clear sign that Lorentz symmetry is broken. We investigate these effects quantitatively, first in a QED plasma and secondly using non-perturbative simulations of QCD with two light degenerate flavors of quarks.

17 pages, 8 figures

References in corpus (3)

• Relativistic viscous hydrodynamics, conformal invariance, and holography
• Spectral sum rules for the quark-gluon plasma
• On cutoff effects in lattice QCD from short to long distances

Cited by in corpus (5)

• Recent Progress in QCD Condensate Evaluations and Sum Rules
• Charge transport and vector meson dissociation across the thermal phase transition in lattice QCD with two light quark flavors
• QCD thermodynamics with O(a) improved Wilson fermions at Nf=2
• Finite temperature sum rules in the vector channel at finite momentum
• Vector correlator and scale determination in lattice QCD