Large Gauge Transformations and Magnetic Vortices in Axial Gauge QCD
نویسنده
چکیده
It is shown that in the modified axial gauge version of canonically quantized QCD3+1 on a torus only nongeneric gauge field configurations allow for large gauge transformations. For the other configurations, the gauge is fixed completely. Such configurations carry nonzero total magnetic abelian fluxes, correspond to magnetic vortices parallel to the coordinate axes and are incorporated using both singular gauge fields and a change of boundary conditions. Talk presented at the “Workshop on Nonperturbative Approaches to QCD” at the ECT*, Trento, July 10th – 28th, 1995. Email: [email protected]
منابع مشابه
Residual Gauge Fixing in Light-Front QCD
Understanding the nontrivial features of light-front QCD is a central goal in current investigations of nonperturbative light-front field theory. We find that, with the choice of light-front gauge with antisymmetric boundary conditions for the field variables, the residual gauge freedom is fixed and the light-front QCD vacuum is trivial. The nontrivial structure in light-front QCD is determined...
متن کاملMagnetic Monopoles, Center Vortices and Topology of Gauge Fields
Recent lattice calculations have given strong evidence for two confinement scenarios: 1. the dual Meissner effect [1], which is based on a condensate of magnetic monopoles in the QCD vacuum and 2. the center vortex picture [2], where the vacuum consists of a condensate of magnetic flux tubes which are closed due to the Bianchi identity. There are also lattice calculations which indicate that th...
متن کاملNexus solitons in the center vortex picture of QCD
It is very plausible that confinement in QCD comes from linking of Wilson loops to finite-thickness vortices with magnetic fluxes corresponding to the center of the gauge group. The vortices are solitons of a gauge-invariant QCD action representing the generation of gluon mass. There are a number of other solitonic states of this action. We discuss here what we call nexus solitons, in which for...
متن کاملStructure and Dynamics of Monopoles in Axial-Gauge QCD
An investigation of singular fields emerging in the process of transforming QCD to the axial gauge is presented. The structure of the singularities is analyzed. It is shown that apart from well known neutral magnetic monopole singularities, the field configurations also exhibit singularities in their charged and transverse components. This complex singularity structure guarantees finite non-Abe...
متن کاملNon-abelian Vortex and Confinement
We discuss general properties and possible types of magnetic vortices in non-Abelian gauge theories (we consider here G = SU(N), SO(N), USp(2N)) in the Higgs phase. The sources of such vortices carry “fractional” quantum numbers such as Zn charge (for SU(N)), but also full non-Abelian charges of the dual gauge group. If such a model is re-interpreted as an effective dual magnetic theory of the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1995