Projective module description of the q-monopole

Citation
Pm. Hajac et S. Majid, Projective module description of the q-monopole, COMM MATH P, 206(2), 1999, pp. 247-264
Citations number
19
Categorie Soggetti
Physics
Journal title
COMMUNICATIONS IN MATHEMATICAL PHYSICS
ISSN journal
00103616 → ACNP
Volume
206
Issue
2
Year of publication
1999
Pages
247 - 264
Database
ISI
SICI code
0010-3616(199910)206:2<247:PMDOTQ>2.0.ZU;2-T
Abstract
The Dirac q-monopole connection is used to compute projector matrices of qu antum Hopf line bundles for arbitrary winding number. The Chern-Connes pair ing of cyclic cohomology and K-theory is computed for the winding number -1 . The non triviality of this pairing is used to conclude that the quantum p rincipal Hopf fibration is non-cleft. Among general results, we provide a l eft-right symmetric characterization of the canonical strong connections on quantum principal homogeneous spaces with an injective antipode. We also p rovide for arbitrary strong connections on algebraic quantum principal bund les (Hopf-Galois extensions) their associated covariant derivatives on proj ective modules.