Symmetries on the moduli space of (2,2) superstring vacua

Amit Giveon*, Dirk Jan Smith

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


Symmetries of the space of (2,2) string vacua for c = 3, 6, 9 are discussed in the context of orbifoldized Landau-Ginzburg theories. A general method for finding the maximal symmetry groups on the moduli space of untwisted marginal operators is presented, by studying deformations of superpotentials. We give a complete discussion for the c = 3, 6 untwisted sectors. In particular we find non-abelian symmetry groups on the moduli space of c = 6 which are shown to correspond with automorphism groups of K3 surfaces. All these groups are subgroups of O(20, 4, Z). Some elements of these groups relate small volume target spaces to large ones.

Original languageAmerican English
Pages (from-to)168-206
Number of pages39
JournalNuclear Physics B
Issue number1
StatePublished - 28 Jan 1991
Externally publishedYes

Bibliographical note

Funding Information:
* This work was supported in part by the Director, Office of Energy Research, Office of High Energy and Nuclear Physics, Division of High Energy Physics of the U.S. Department of Energy under Contract DE-AC03-76SF00098. ** Supported in part by the Chaim Weizmann fellowship. *** Supported in part by NSF grant PHY85-15857. I Email address: GIVEON~ LBL.bitnet, SMIT~ LBL.bitnet


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