Coulomb Energy, Vortices, and Confinement

Details Coulomb Energy, Vortices, and Confinement Coulomb Energy, Vortices, and Confinement

2003-02-25

arxiv.org/abs/hep-lat/0302018v2

Phys.Rev. D67 (2003) 094503

Physics

High Energy Physics

High Energy Physics - Lattice

8 pages, 4 EPS figures, RevTeX4; reference added

Scientific paper

10.1103/PhysRevD.67.094503

We estimate the Coulomb energy of static quarks from a Monte Carlo calculation of the correlator of timelike link variables in Coulomb gauge. We find, in agreement with Cucchieri and Zwanziger, that this energy grows linearly with distance at large quark separations. The corresponding string tension, however, is several times greater than the accepted asymptotic string tension, indicating that a state containing only static sources, with no constituent gluons, is not the lowest energy flux tube state. The Coulomb energy is also measured on thermalized lattices with center vortices removed by the de Forcrand-D'Elia procedure. We find that when vortices are removed, the Coulomb string tension vanishes.

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