Jul 26 – 30, 2021
US/Eastern timezone

Centre Vortex Structure in 2+1 Flavour QCD

Jul 27, 2021, 10:00 PM
15m
Oral presentation Vacuum Structure, Confinement, and Chiral Symmetry Vacuum Structure, Confinement, and Chiral Symmetry

Speaker

James Biddle (University of Adelaide)

Description

This presentation introduces new insights into the centre-vortex structure of lattice gauge fields, this time exploring the influence of dynamical fermions in the full-QCD vacuum. Calculations of both the Landau-gauge gluon propagator and the static quark potential reveal notable differences in the vortex phenomenology of pure-gauge and full-QCD simulations. Remarkably, configurations composed of centre-vortices alone have the ability to reproduce the static quark potential of full QCD. Moreover, the distribution of vortices in the vacuum is altered significantly with the introduction of dynamical fermions. Together, these results report the substantial influence of dynamical fermions on the centre-vortex structure of QCD-vacuum fields.

Primary author

James Biddle (University of Adelaide)

Co-authors

Prof. Derek Leinweber (CSSM, University of Adelaide) Waseem Kamleh (University of Adelaide)

Presentation materials