On any q-deformation of a simply connected simple compact Poisson Lie group we construct; an equivariant spectral triple which is an isospectral deformation of that defined by the Dirac operator on the original group. Our quantum Dirac operator is defined using a Drinfeld twist which relates the q-deformed compact quantum group to the original group, and thus a priori depends on the choice of the twist, but it turns out that the spectral triple is nevertheless unique up to unitary equivalence.
机构:
Huazhong Univ Sci & Technol, Sch Math & Stat, Wuhan 430074, Peoples R ChinaQueen Mary Univ London, Sch Math Sci, Mile End Rd, London E1 4NS, England