The String Measure and Spectral Flow of Critical N=2 Strings

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.

14 pages, LaTeX, macros included

References in corpus (3)

• Vanishing Theorems for the Self-Dual N=2 String
• BRST Quantisation of the N=2 String in a Real Spacetime Structure
• From N=2 Fermionic Strings to Superstrings?

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• Integration Measure and Spectral Flow in the Critical N=2 String
• $A_{\infty }$ Action of Open $\mathcal{N}=2$ Superstring Field Theory