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arXiv · 1710.00847

Lattice Landau gauge gluon propagator at finite temperature: non-zero Matsubara frequencies and spectral densities

Paulo J. Silva·Orlando Oliveira·David Dudal·Martin Roelfs
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Abstract

The lattice Landau gauge gluon propagator at finite temperature is computed including the non-zero Matsubara frequencies. Furthermore, the Källén-Lehmann representation is inverted and the corresponding spectral density evaluated using a Tikhonov regularisation together with the Morozov discrepancy principle. Implications for gluon confinement are discussed.

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Paulo J. Silva, Orlando Oliveira, David Dudal, Martin Roelfs. 2017-10-02. Lattice Landau gauge gluon propagator at finite temperature: non-zero Matsubara frequencies and spectral densities. https://arxiv.org/abs/1710.00847

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