ar X iv : h ep - t h / 99 04 15 5 v 3 2 5 A ug 1 99 9 TIT / HEP - 411 Puzzles on the Duality between Heterotic and Type IIA Strings
نویسندگان
چکیده
We discuss the possibility of the extension of the duality between the webs of heterotic string and the type IIA string to Calabi-Yau three-folds with another K3 fiber by comparing the dual polyhedron of Calabi-Yau three-folds given by Candelas, Perevalov and Rajesh. [email protected] [email protected]
منابع مشابه
ar X iv : h ep - t h / 99 04 15 5 v 1 2 3 A pr 1 99 9 TIT / HEP - 411 Puzzles on the Duality between
We discuss the possibility of the extension of the duality between the webs of heterotic string and the type IIA string to Calabi-Yau 3-folds with another K3 fiber by comparing the dual polyhedron of Calabi-Yau 3-folds given by Candelas, Perevalov and Rajesh. [email protected] [email protected]
متن کاملar X iv : h ep - t h / 99 04 15 5 v 2 2 7 A pr 1 99 9 TIT / HEP - 411
We discuss the possibility of the extension of the duality between the webs of heterotic string and the type IIA string to Calabi-Yau 3-folds with another K3 fiber by comparing the dual polyhedron of Calabi-Yau 3-folds given by Candelas, Perevalov and Rajesh. [email protected] [email protected]
متن کاملar X iv : h ep - t h / 97 05 23 8 v 3 2 7 A ug 1 99 9 TIT / HEP - 370 Calabi - Yau manifolds constructed by Borcea - Voisin method
We construct Calabi-Yau manifolds and their mirrors from K3 surfaces. This method was first developed by Borcea and Voisin. We examined their properties torically and checked mirror symmetry for Calabi-Yau 4fold case. From Borcea-Voisin 3-fold or 4-fold examples, it may be possible to probe the S-duality of Seiberg Witten. [email protected] [email protected]
متن کاملar X iv : h ep - t h / 98 04 07 5 v 1 9 A pr 1 99 8 PUPT - 1786 hep - th / 9804075 Equivariant Sheaves
In this article we review some recent developments in heterotic compactifications. In particular we review an " inherently toric " description of certain sheaves, called equivariant sheaves, that has recently been discussed in the physics literature. We outline calculations that can be performed with these objects, and also outline more general phenomena in moduli spaces of sheaves.
متن کاملar X iv : h ep - t h / 97 05 16 2 v 1 2 1 M ay 1 99 7 QMW - 97 - 16 NI 97028 - NQF hep - th / 9705162 May , 1997
It is argued that D = 10 type II strings and M-theory in D = 11 have D − 5 branes and 9-branes that are not standard p-branes coupled to anti-symmetric tensors. The global charges in a D-dimensional theory of gravity consist of a momentum P M and a dual D − 5 form charge K M1...MD−5 , which is related to the NUT charge. On dimensional reduction, P gives the electric charge and K the magnetic ch...
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