@article{be54ff980a1a4d8984c90a4f2282d209,
title = "Vacuum configurations for superstrings",
abstract = "We study candidate vacuum configurations in ten-dimensional O(32) and E8 × E8 supergravity and superstring theory that have unbroken N = 1 supersymmetry in four dimensions. This condition permits only a few possibilities, all of which have vanishing cosmological constant. In the E8 × E8 case, one of these possibilities leads to a model that in four dimensions has an E6 gauge group with four standard generations of fermions.",
author = "P. Candelas and Horowitz, {Gary T.} and Andrew Strominger and Edward Witten",
note = "Funding Information: We wish to thank E. Calabi, C.M. Hull, D.N. Page, K. Pilch C.N. Pope, A. Schellekens and S.-T. Yau, for helpful discussions, and the members of the workshop on higher dimensions at the ITP at Santa Barbara for interesting comments. We also wish to thank T. Banks for stressing the importance of unbroken supersymmetry and for discussions about the role of H. One of us (E.W.) wishes to acknowledge a conversation with D. Friedan who independently made some of the points in sect. 5. Another one of us (A.S.) is grateful for the hospitality of the ITP. This work was supported in part by NSF grants PHY80-19754, PHY81-07384, PHY82-05717 and PHY77-27084 and supplemented by funds from the National Aeronautics and Space Administration.",
year = "1985",
doi = "10.1016/0550-3213(85)90602-9",
language = "English (US)",
volume = "258",
pages = "46--74",
journal = "Nuclear Physics B",
issn = "0550-3213",
publisher = "Elsevier",
number = "C",
}