NLSM and Strings
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String theory [1, 170, 171, 172, 347, 348, 349] describes (quantized) relativistic one-dimensional objects (called strings) propagating in D-dimensional space-time. The very idea of string theory originated from the efforts to describe quark confinement and Regge trajectories of hadrons. Superstring theory was later applied for a construction of quantum gravity. A string action defined in curved spacetime is described by NLSM. In this chapter we discuss the relation between the NLSM and strings.
KeywordsBlack Hole Vertex Operator Open String Closed String Conformal Field Theory
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