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Target space duality of curved backgrounds
  OKC/Nordita High-Energy Physics Theory seminar

Monday 12 May 2008
from 15:30 to 16:30
at CoPS group room
Speaker : Volker Schomerus (DESY)
Abstract : Strong-weak coupling dualities in 2-dimensional quantum theory possess a long history, with a remarkable range of applications. Target space dualities between non-linear sigma model, for example, often allow to sum up contributions from world-sheet instantons, a task that would seem virtually impossible without duality symmetries. In recent years, a new class of curved target spaces has come into focus through the AdS/CFT correspondence. As simple examples show, the corresponding sigma model theories receive non-perturbative alpha' corrections. It would be of obvious interest to capture those through perturbative expansions in some dual world-sheet theory, whenever such a dual exists. In my talk I will explain and derive a prototypical example for a weakly coupled string dual of a strongly coupled holographic background.

Nordita  | Last modified 07 March 2015 11:37  |  HELP