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New extended superconformal sigma models and quaternion Kahler manifolds
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
2009 (English)In: Journal of High Energy Physics (JHEP), ISSN 1029-8479, E-ISSN 1126-6708, no 9, 119- p.Article in journal (Refereed) Published
Abstract [en]

Quaternion Kahler manifolds are known to be the target spaces for matter hypermultiplets coupled to N = 2 supergravity. It is also known that there is a one-to-one correspondence between 4n-dimensional quaternion Kahler manifolds and those 4(n + 1)dimensional hyperkahler spaces which are the target spaces for rigid superconformal hypermultiplets (such spaces are called hyperkahler cones). In this paper we present a projective-superspace construction to generate a hyperkahler cone M-H(4(n + 1)) of dimension 4(n + 1) from a 2n-dimensional real analytic Kahler-Hodge manifold M-K(2n). The latter emerges as a maximal Kahler submanifold of the 4n-dimensional quaternion Kahler space M-Q(4n) such that its Swann bundle coincides with M-H(4)(n + 1). Our approach should be useful for the explicit construction of new quaternion Kahler metrics. The results obtained are also of interest, e. g., in the context of supergravity reduction N = 2 -> N = 1, or alternatively from the point of view of embedding N = 1 matter-coupled supergravity into an N = 2 theory.

Place, publisher, year, edition, pages
2009. no 9, 119- p.
Keyword [en]
Extended Supersymmetry, Superspaces, Supergravity Models
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-127478DOI: 10.1088/1126-6708/2009/09/119ISI: 000270667600119OAI: oai:DiVA.org:uu-127478DiVA: diva2:330265
Available from: 2010-07-15 Created: 2010-07-13 Last updated: 2012-05-18Bibliographically approved

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Lindström, Ulf
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