par Bao, Ling;Kleinschmidt, Axel ;Nilsson, Bengt;Persson, Daniel;Pioline, Boris
Référence Journal of physics. Conference series, 462, 1, 012026
Publication Publié, 2013
Référence Journal of physics. Conference series, 462, 1, 012026
Publication Publié, 2013
Article révisé par les pairs
Résumé : | Type IIA string theory compactified on a rigid Calabi-Yau threefold gives rise to a classical moduli space that carries an isometric action of U(2, 1). Various quantum corrections break this continuous isometry to a discrete subgroup. Focussing on the case where the intermediate Jacobian of the Calabi-Yau admits complex multiplication by the ring of quadratic imaginary integers script O signd, we argue that the remaining quantum duality group is an arithmetic Picard modular group PU(2, 1; script O signd). Based on this proposal we construct an Eisenstein series invariant under this duality group and study its non-Abelian Fourier expansion. This allows the prediction of non-perturbative effects, notably the contribution of D2- and NS5-brane instantons. The present work extends our previous analysis in 0909.4299 which was restricted to the special case of the Gaussian integers script O sign1 = ℤ[i]. |