The Self-Dual Critical N=2 String
High Energy Physics - Theory
2007-05-23 v1
Abstract
I review the covariant quantization of the closed fermionic string with (2,2) extended world-sheet supersymmetry on R^{2,2}. Results on n-point scattering amplitudes are presented, for tree- and one-loop world-sheets with arbitrary Maxwell instanton number. I elaborate the connection between Maxwell moduli, spectral flow, and instantons. It is argued that the latter serve to extend the Lorentz symmetry from U(1,1) to SO(2,2) by undoing the choice of spacetime complex structure.
Cite
@article{arxiv.hep-th/9607106,
title = {The Self-Dual Critical N=2 String},
author = {Olaf Lechtenfeld},
journal= {arXiv preprint arXiv:hep-th/9607106},
year = {2007}
}
Comments
Talk at Alushta Conference, Crimea, Ukraine, May 1996; 7 pages LaTeX