Eur. Phys. J. C (2009) 60: 471-480
https://doi.org/10.1140/epjc/s10052-009-0919-0

Regular Article - Theoretical Physics

Near-flat space limit of strings on AdS ₄×ℂℙ³

Institute for Theoretical Physics, Vienna University of Technology, Wiedner Hauptstr. 8-10, 1040, Vienna, Austria

^* e-mail: rash@hep.itp.tuwien.ac.at

Received: 17 December 2008
Revised: 26 January 2009
Published online: 21 February 2009

Abstract

The non-linear nature of string theory on non-trivial backgrounds, related to the AdS/CFT correspondence, force one to look for simplifications. Two such simplifications proved to be useful in studying string theory. These are the pp-wave limit, which describes point-like strings, and the so-called “near-flat space” limit which connects two different sectors of string theory—pp-wave and “giant magnons”. Recently another example of AdS/CFT duality emerged—AdS ₄/CFT ₃, which suggests duality between CS theory and superstring theory on . In this paper we study the “near-flat space” limit of strings on an background and discuss possible applications of the limiting theory.