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Dissecting the string theory dual to QCD

✍ Scribed by E. Kiritsis

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
318 KB
Volume
57
Category
Article
ISSN
0015-8208

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✦ Synopsis

Abstract

Input from QCD and string theory is used in order to elucidate basic features of the string theory dual of QCD, It is argued that the relevant string theory is a five‐dimensional version of the type‐0 superstring. The vacuum solution is asymptotically AdS~5~, and the geometry near the boundary is stringy. The structure of YM perturbation theory however emerges near the boundary. In the IR, the theory is argued to be well‐approximated by a two‐derivative truncation that takes into account strong coupling effects. This explains the success of previously proposed five‐dimensional Eistein‐dilaton gravity with an appropriate potential to describe salient features of the strong YM dynamics.

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