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arXiv · 1701.00286

From condensed matter to QCD: a journey through gauge theories on board of a variational tool

Fabio Siringo
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Abstract

Starting with a review of the thermal fluctuations in superconductors, the Gaussian Effective Potential is shown to be a powerful variational tool for the study of the breaking of symmetry in gauge theories. A novel re-derivation of the massive expansion for QCD is presented, showing its variational nature and its origin from the Gaussian potential that also provides a variational proof for chiral symmetry breaking and dynamical generation of a gluon mass.

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Fabio Siringo. 2017-01-01. From condensed matter to QCD: a journey through gauge theories on board of a variational tool. https://arxiv.org/abs/1701.00286

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