We improve the heavy quark potential, extracted from the Wilson loop averag
e in the Ads/CFT approach by taking the quantum fluctuation of the only rad
ial coordinate of Ads, which is transverse to the world-sheet of the classi
cal Nambu-Goto string in the static gauge, and obtain the universal Luwsche
r-Symanzik-Weisz/Luscher term. (C) 1999 Published by Elsevier Science B.V.
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