Broadening of the QCD3 flux tube from the AdS/CFT correspondence

Details Broadening of the QCD3 flux tube from the AdS/CFT correspondence Broadening of the QCD3 flux tube from the AdS/CFT correspondence

2000-08-09

arxiv.org/abs/hep-th/0008080v4

JHEP 0011 (2000) 030

Physics

High Energy Physics

High Energy Physics - Theory

19 pages, LaTex, 10 figures. Version to appear in JHEP

Scientific paper

10.1088/1126-6708/2000/11/030

We use the finite temperature AdS/CFT approach to demonstrate logarithmic broadening of the confining QCD3 flux tube as a function of quark separation. This behavior indicates that, unlike lattice QCD, there is no roughening transition in the AdS/CFT formulation, which raises the interesting possibility of extrapolating strong coupling results to weak couplings by the use of resummation techniques. In the zero-temperature non-confining limit, we find that this logarithmic broadening of the field strength distribution is absent. Our results are obtained numerically at strong couplings, in the supergravity approximation.

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