Confining Classical Configurations
نویسنده
چکیده
We construct a family of smooth, almost self-dual, non-thermalized SU(2) gauge field configurations, and measure the average of the fundamental, adjoint and spin 3 2 representation Wilson loops on them. We get area law in all three cases. We also study thermalised configurations at β = 2.325 after cooling. The ratio of string tension in the spin j representation over that in the fundamental, stays constant with cooling.
منابع مشابه
Unstable Bundles in Quantum Field Theory
The relation between connections on 2-dimensional manifolds and holomorphic bundles provides a new perspective on the role of classical gauge fields in quantum field theory in two, three and four dimensions. In particular we show that there is a close relation between unstable bundles and monopoles, sphalerons and instantons. Some of these classical configurations emerge as nodes of quantum vac...
متن کاملCharmonium from Classical Pure SU(3) Yang-Mills Configurations
A generalized Faddeev-Niemi ansatz for the gluon field is discussed. In its simplest parametrization, the ansatz allows a solution of the classical SU(3) Yang-Mills equations. From these solutions a confining potential for heavy quarkonia is defined. The investigation of charmonium spectra proves that the potential is able to reproduce the experimental spectra at the level of 3%. Moreover, char...
متن کاملat / 0 50 90 87 v 1 2 2 Se p 20 05 Laplacian modes for calorons and as a filter HU - EP - 05 / 57
We compute low-lying eigenmodes of the gauge covariant Laplace operator on the lattice at finite temperature. For classical configurations we show how the lowest mode localizes the monopole constituents inside calorons and that it hops upon changing the boundary conditions. The latter effect we observe for thermalized backgrounds, too, analogously to what is known for fermion zero modes. We pro...
متن کاملSemiclassical strings on confining backgrounds
This paper discusses some results on semiclassical string configurations lying in the IR sector of supergravity backgrounds dual to confining gauge theories. On the gauge theory side, the string states we analyse correspond to Wilson loops, glueballs and KK-hadrons. The 1-loop correction to the classical energy is never subleading, but can be viewed as a coupling dependent rescaling of the dime...
متن کاملCharmonium, Bottomonium, Bc Mesons from Classical Pure SU(3) Yang-Mills Configurations
A generalized Faddeev-Niemi ansatz for the gluon field is discussed. In its simplest parametrization, the ansatz allows a solution of the classical SU(3) Yang-Mills equations and from these solutions a confining potential for heavy quarkonia is defined. The investigation of charmonium and bottomonium proves that the potential is able to reproduce the spectra at the level of 3% for charmonium an...
متن کامل