Compact Ricci-flat Kähler manifold with trivial canonical bundle and holonomy SU(n). The 6-D three-fold case is the preferred internal manifold for N=1-preserving heterotic compactifications.
Compact Ricci-flat Kähler manifold with trivial canonical bundle and holonomy SU(n). The 6-D three-fold case is the preferred internal manifold for N=1-preserving heterotic compactifications.