How Self-Dual is QCD?
arXiv:1110.2762 · doi:10.1016/j.physletb.2011.11.034
Abstract
Vacuum characteristics quantifying dynamical tendency toward self-duality in gauge theories could be used to judge the relevance of classical solutions or the viability of classically motivated vacuum models. Here we decompose the field strength of equilibrium gauge configurations into self-dual and anti-self-dual parts, and apply absolute X-distribution method to the resulting polarization dynamics in order to construct such characteristics. Using lattice regularization and focusing on pure-glue SU(3) gauge theory at zero temperature, we find evidence for positive but very small dynamical tendency for self-duality of vacuum in the continuum limit.
11 pages, 4 figures
References in corpus (4)
- Exploring the structure of the quenched QCD vacuum with overlap fermions
- Confinement, chiral symmetry, and the lattice
- Classical Limits of Scalar and Tensor Gauge Operators Based on the Overlap Dirac Matrix
- The Analysis of Space-Time Structure in QCD Vacuum II: Dynamics of Polarization and Absolute X-Distribution