The string/gauge theory correspondence in QCD*
Institute for Theoretical Physics, Utrecht University, P.O. Box 80.195, 3508 TD Utrecht, The Netherlands
2 Department of Mathematical Sciences, Durham University, South Road, Durham, DH1 3LE, UK
Ideas about a duality between gauge fields and strings have been around for many decades. During the last ten years, these ideas have taken a much more concrete mathematical form. String descriptions of the strongly coupled dynamics of semi-realistic gauge theories, exhibiting confinement and chiral symmetry breaking, are now available. These provide remarkably simple ways to compute properties of the strongly coupled quark-gluon fluid phase, and also shed new light on various phenomenological models of hadron fragmentation. We present a review and highlight some exciting recent developments.
© EDP Sciences, Springer-Verlag, 2007