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arXiv · hep-lat/0301006

The electrical conductivity and soft photon emissivity of the QCD plasma

Sourendu Gupta
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Abstract

The electrical conductivity in the hot phase of the QCD plasma is extracted from a quenched lattice measurement of the Euclidean time vector correlator for 1.5 < T/T_c < 3. The spectral density in the vicinity of the origin is examined using a method specially adapted to this region, and a peak at small energies is seen. The continuum limit of the electrical conductivity, and the closely related soft photon emissivity of the QCD plasma, are then extracted from a fit to the Fourier transform of the temporal vector correlator.

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Sourendu Gupta. 2004-06-08. The electrical conductivity and soft photon emissivity of the QCD plasma. https://doi.org/10.1016/j.physletb.2004.05.079

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