T-duality twists and asymmetric orbifolds
T-duality twists and asymmetric orbifolds
We study some aspects of asymmetric orbifolds of tori, with the orbifold group being some ℤ N subgroup of the T-duality group and, in particular, provide a concrete understanding of certain phase factors that may accompany the T-duality operation on the stringy Hilbert space in toroidal compactification. We discuss how …