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CALT-68-2663 Sine-Gordon-like action for the Superstring in

By Ads S, Andrei Mikhailov and Sakura Schäfer-nameki

Abstract

We propose an action for a sine-Gordon-like theory, which reproduces the classical equations of motion of the Green-Schwarz-Metsaev-Tseytlin superstring on AdS5 × S 5. The action is relativistically invariant. It is a mass-deformed gauged WZW model for SO(4, 1) × SO(5)/SO(4) × SO(4) interacting with fermions. 1 Introduction and Summary Quantizing the superstring in AdS5×S 5 is important for understanding string theory in curved spaces and the AdS/CFT correspondence. The most successful route so far is to make use of the yet to be proven integrability of the superstring theory in AdS5 × S 5 in the light-cone gauge [1]. But the light-cone gauge-fixed worldshee

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