The Self-Dual Critical N=2 String
Abstract
Description
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.
Talk at Alushta Conference, Crimea, Ukraine, May 1996; 7 pages LaTeX
Talk at Alushta Conference, Crimea, Ukraine, May 1996; 7 pages LaTeX