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Gluon condensate, Wilson loops and gauge/string duality

Oleg Andreev1,2 and Valentin I. Zakharov1,3

  • 1Max-Planck Institut für Physik, Föhringer Ring 6, 80805 München, Germany
  • 2L. D. Landau Institute for Theoretical Physics, Kosygina 2, 119334 Moscow, Russia
  • 3Istituto Nazionale di Fisica Nucleare—Sezione di Pisa, Largo Pontecorvo 3, 56127 Pisa, Italy

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Phys. Rev. D 76, 047705 – Published 28 August, 2007

DOI: https://doi.org/10.1103/PhysRevD.76.047705

Abstract

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 a rich phenomenology. The dual formulation provides 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  GeV4.

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Phys. Rev. D 76, 047705– Published 28 August, 2007
  • Received 7 March 2007

© 2007 American Physical Society

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