Abstract

Orientifolds And Mirror Symmetry

Kentaro Hori
University of Toronto
Physics

We study parity symmetries and crosscap states in N=2 supersymmetric
non-linear sigma models, Landau-Ginzburg models, and linear sigma models.
The parity anomaly and its cancellation play important roles. We identify
mirror pairs of orientifold models, extending the correspondence
between symplectic geometry and algebraic geometry by including unoriented
strings.