2009/06/30 by B. Hoare, Y. Iwashita, A. A. Tseytlin · 1 citation
Physics and Astronomy · #hep-th
paper · pdf · doi:10.1088/1751-8113/42/37/375204
published as J.Phys.A42:375204,2009 · 44 pages. v2: references added
arxiv created 2009/07/31 · arxiv updated 2009/12/01
We consider the Pohlmeyer-reduced formulation of the AdS5 x S5 superstring. It is constructed by introducing new variables which are algebraically related to supercoset current components so that the Virasoro conditions are automatically solved. The reduced theory is a gauged WZW model supplemented with an integrable potential and fermionic terms that ensure its UV finiteness. The original superstring theory and its reduced counterpart are closely related at the classical level, and we conjecture that they remain related at the quantum level as well, in the sense that their quantum partition functions evaluated on respective classical solutions are equal. We provide evidence for the validity of this conjecture at the one-loop level, i.e. at the first non-trivial order of the semiclassical expansion near several classes of classical solutions.