2002/08/07 by K. S. Stelle
Physics and Astronomy · #hep-th
published as "Supersymmetries and Quantum Symmetries," Proc. XVI Max Born Symposium (Karpacz, Poland, September 21-25, 2001), Eds E. Ivanov, S. Krivonos, J. Lukierski and A. Pashnev (Dubna, JINR, 2002); pp 86-95 · 9 pages, Latex, uses amssymb macro
arxiv created 2002/08/07 · arxiv updated 2009/11/30
We review the relations between a family of domain-wall solutions to M-theory and gravitational instantons with special holonomy. When oxidized into the maximal-dimension parent supergravity, the transverse spaces of these domain walls become cohomogeneity-one spaces with generalized Heisenberg symmetries and a homothetic conformal symmetry. These metrics may also be obtained as scaling limits of generalized Eguchi-Hanson metrics, or, with appropriate discrete identifications, from generalized Atiyah-Hitchin metrics, thus providing field-theoretic realizations of string-theory orientifolds.