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DDF and Pohlmeyer invariants of (super)string

Urs Schreiber1

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We show how the Pohlmeyer invariants of the bosonic string are expressible in terms of DDF invariants. Quantization of the DDF observables in the usual way yields a consistent quantization of the algebra of Pohlmeyer invariants. Furthermore it becomes straightforward to generalize the Pohlmeyer invariants to the superstring as well as to all backgrounds which allow a free field realization of the worldsheet theory.


Keywords

Superstrings and Heterotic Strings

Integrable Field Theories

Bosonic Strings

PACS

11.25.-w Strings and branes

11.30.Cp Lorentz and Poincare invariance

02.30.Ik Integrable systems

02.30.Tb Operator theory

Subjects

Mathematical physics

Particle physics and field theory

Dates

Issue 05 (May 2004)

Received 26 March 2004, accepted for publication 11 May 2004

Published 14 May 2004



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