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arXiv · 2302.05897

Centre vortex structure in the presence of dynamical fermions

James C. Biddle·Waseem Kamleh·Derek B. Leinweber
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Abstract

An analysis of the geometry and structure of centre vortices in the presence of dynamical fermions is performed. A variety of metrics are used to measure the matrix structure of the vortex-modified gauge fields. Visualisations of centre vortices are presented and percolating clusters are identified. The size of secondary vortex clusters is analysed, with substantial differences observed between the pure Yang-Mills and dynamical fermion case. Vortex fields are represented as directed graphs, with branching points acting as the vertices. This representation leads to a novel picture of vortex branching as a binomial process. These results elucidate the change in the centre vortex vacuum induced by the introduction of dynamical fermions.

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James C. Biddle, Waseem Kamleh, Derek B. Leinweber. 2023-02-12. Centre vortex structure in the presence of dynamical fermions. https://doi.org/10.1103/physrevd.107.094507

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