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BRST cohomology and nonlocal conserved charges

Nathan Berkovits JHEP02(2005)060   doi: 10.1088/1126-6708/2005/02/060  Help

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Nathan Berkovits1
1 Instituto de Fí sica Teórica, Universidade Estadual Paulista, Rua Pamplona 145, 01405-900, S ao Paulo, SP, Brasil
E-mail: nberkovi@ift.unesp.br

Abstract. A relation is found between nonlocal conserved charges in string theory and certain ghost-number two states in the BRST cohomology. This provides a simple proof that the nonlocal conserved charges for the superstring in an AdS5 × S5 background are BRST-invariant in the pure spinor formalism and are κ-symmetric in the Green-Schwarz formalism.

Key words: AdS-CFT and dS-CFT Correspondence; BRST Symmetry

E-print number: hep-th/0409159
Cited: by
Refers: to

Received 20 January 2005, accepted for publication 21 February 2005
Published 10 March 2005

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