Finite temperature gluon propagator in Landau gauge: non-zero Matsubara frequencies and spectral densities
arXiv:1711.02584 · doi:10.1051/epjconf/201817507038
Abstract
We report on the lattice computation of the Landau gauge gluon propagator at finite temperature, including the non-zero Matsubara frequencies. Moreover, the corresponding Källén-Lehmann spectral density is computed, using a Tikhonov regularisation together with the Morozov discrepancy principle. Implications for gluon confinement are also discussed.
5 pages, 5 figures, Lattice 2017 proceedings