2018/11/23 by Carlotta Marchis, Marchis, Carlotta, Christof Gattringer +3
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.1811.09372
openalex publication_date 2018/11/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We explore new representations for lattice gauge theories with fermions,\nwhere the space-time lattice is divided into dynamically fluctuating regions,\ninside which different types of degrees of freedom are used in the path\nintegral. The first kind of regions is a union of so-called bags, in which the\ndynamics is described by the free propagation of composite degrees of freedom\nof the original fermions. In the second region, called complementary domain,\nconfigurations of the remaining interacting degrees of freedom are used to\ndescribe the dynamics. We work out the bag representation for the gauge groups\nSU(2) and SU(3) and address the nature of the strong coupling effective degrees\nof freedom, which are fermions for SU(3) and bosons for SU(2). We discuss first\nsteps towards a numerical simulation of the bag representations.\n