Integration Measure and Spectral Flow in the Critical N=2 String

Abstract

I present the moduli space of the (2+2)-dimensional critical closed fermionic string with two world-sheet supersymmetries. The integration of fermionic and Maxwell moduli in the presence of punctures yields the string measure for n-point amplitudes at arbitrary genus and instanton number. Generalized picture-changing and spectral-flow operators emerge, connecting different instanton sectors. Tree and loop amplitudes are computed.

Talk at 29th Ahrenshoop Symposium in Buckow 1995, 6 pages, espcrc2.sty

References in corpus (6)

• N=4 Topological Strings
• Super-Poincare Invariant Superstring Field Theory
• Gso Projection, BRST Cohomology and Picture-Changing in N=2 String Theory
• Toward the Universal Theory of Strings
• The String Measure and Spectral Flow of Critical N=2 Strings
• Vanishing Theorems for the Self-Dual N=2 String

Cited by in corpus (1)

• $A_{\infty }$ Action of Open $\mathcal{N}=2$ Superstring Field Theory