Gluon Condensate, Wilson Loops and Gauge/String Duality
classification
✦ hep-ph
hep-lathep-th
keywords
condensategluondualitygaugeloopsstringwilsonapproximately
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We test gauge/string duality by evaluating expectation values of small Wilson loops in pure Yang-Mills theories. On the gauge-theory side, there exists rich phenomenology. The dual formulation provides with a universal language to evaluate the gluon condensate and quadratic correction in terms of the metric in the fifth coordinate. Quantitatively, the estimated value of the gluon condensate is approximately 0.010 GeV^4.
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