Integrability of the Gauged Linear Sigma Model for AdS_5xS^5
arXiv:0804.4507 · doi:10.1088/1126-6708/2009/11/007
Abstract
Recently, a gauged linear sigma model was proposed by Berkovits and Vafa which can be used to describe the AdS_5xS^5 superstring at finite and zero radius. In this paper we show that the model is classically integrable by constructing its first non-local conserved charge and a superspace Lax "quartet". Quantum conservation of the non-local charge follows easily from superspace rules.
arXiv comment20 pages, refs added
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