Consistency of Orbifold Conformal Field Theories on K3
Wendland, Katrin
arXiv, 0010281 / Harvested from arXiv
We explicitly determine the locations of G orbifold conformal field theories, G=Z_M, M=2,3,4,6, G=\hat D_n, n=4,5, or G the binary tetrahedral group \hat T, within the moduli space M^{K3} of N=(4,4) superconformal field theories associated to K3. This is achieved purely from the known description of the moduli space [AM94] and the requirement of a consistent embedding of orbifold conformal field theories within M^{K3}. We calculate the Kummer type lattices for all these orbifold limits. Our method allows an elementary derivation of the B-field values in direction of the exceptional divisors that arise from the orbifold procedure [Asp95,Dou97,BI97], without recourse to D-geometry. We show that our consistency requirement fixes these values uniquely and determine them explicitly. The relation of our results to the classical McKay correspondence is discussed.
Publié le : 2000-10-30
Classification:  High Energy Physics - Theory,  Mathematical Physics
@article{0010281,
     author = {Wendland, Katrin},
     title = {Consistency of Orbifold Conformal Field Theories on K3},
     journal = {arXiv},
     volume = {2000},
     number = {0},
     year = {2000},
     language = {en},
     url = {http://dml.mathdoc.fr/item/0010281}
}
Wendland, Katrin. Consistency of Orbifold Conformal Field Theories on K3. arXiv, Tome 2000 (2000) no. 0, . http://gdmltest.u-ga.fr/item/0010281/