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Centre Vortices in SU(3)

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arxiv 0710.2958 v1 pith:NGCML5SQ submitted 2007-10-16 hep-lat

Centre Vortices in SU(3)

classification hep-lat
keywords gaugepreconditioningcentrefindvorticesappearscasescondition
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We investigate the effectiveness of using smearing as a means to generate a preconditioning transformation for gauge fields prior to fixing to Maximal Centre Gauge. This still leaves the gauge-fixed field in the original gauge orbit. As expected, we find that this preconditioning leads to higher maxima of the gauge-fixing condition, resulting in lower numbers of P-vortices. We also find that removing vortices appears to give a loss of confinement for all cases but that the string tension as measured from vortex-only configurations drops from about 65% to as low as 26% when using the preconditioning method.

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