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arXiv · 1311.0218

Analysis of topological structure of the QCD vacuum with overlap-Dirac operator eigenmode

Takumi Iritani·Guido Cossu·Shoji Hashimoto
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Abstract

Using the eigenmodes of the overlap-Dirac operator, we study the topological structure of the QCD vacuum. We investigate the space-time profile of the low-lying eigenmodes and their contribution to the vacuum action density and chiral condensate under the existence of static color sources. We demonstrate that the low-lying Dirac eigenmode shows the flux-tube structure, which suggests the relevance to confinement. We also analyze the chiral condensate in the flux-tube. Chiral symmetry is partially restored inside the flux, and the reduction of the condensate is about 20% at the center of the tube.

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Takumi Iritani, Guido Cossu, Shoji Hashimoto. 2013-11-01. Analysis of topological structure of the QCD vacuum with overlap-Dirac operator eigenmode. https://arxiv.org/abs/1311.0218

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