The string measure and spectral flow of critical N = 2 strings

Sergei V. Ketov, Olaf Lechtenfeld

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The general structure of N = 2 moduli space at arbitrary genus and instanton number is investigated. The N = 2 NSR string measure is calculated, yielding picture- and U(1) ghost number-changing operator insertions. An explicit formula for the spectral flow operator acting on vertex operators is given, and its effect on N = 2 string amplitudes is discussed.

Original languageEnglish
Pages (from-to)463-470
Number of pages8
JournalPhysics Letters B
Volume353
Issue number4
DOIs
Publication statusPublished - 6 Jul 1995

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strings
operators
ghosts
instantons
insertion
apexes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

The string measure and spectral flow of critical N = 2 strings. / Ketov, Sergei V.; Lechtenfeld, Olaf.

In: Physics Letters B, Vol. 353, No. 4, 06.07.1995, p. 463-470.

Research output: Contribution to journalArticle

Ketov, Sergei V. ; Lechtenfeld, Olaf. / The string measure and spectral flow of critical N = 2 strings. In: Physics Letters B. 1995 ; Vol. 353, No. 4. pp. 463-470.
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