Sökning: id:"swepub:oai:research.chalmers.se:d9da6074-d3da-4f33-9211-b89ce3ae2cae" >
The automorphic NS5...
-
Persson, Daniel,1978Chalmers tekniska högskola,Chalmers University of Technology
(författare)
The automorphic NS5-brane
- Artikel/kapitelEngelska2009
Förlag, utgivningsår, omfång ...
Nummerbeteckningar
-
LIBRIS-ID:oai:research.chalmers.se:d9da6074-d3da-4f33-9211-b89ce3ae2cae
-
https://research.chalmers.se/publication/104359URI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:art swepub-publicationtype
-
Ämneskategori:vet swepub-contenttype
Anmärkningar
-
Understanding the implications of SL(2,Z) S-duality for the hypermultiplet moduli space of type II string theories has led to much progress recently in uncovering D-instanton contributions. In this work, we suggest that the extended duality group SL(3,Z), which includes both S-duality and Ehlers symmetry, may determine the contributions of D5 and NS5-branes. We support this claim by automorphizing the perturbative corrections to the "extended universal hypermultiplet", a five-dimensional universal SO(3) SL(3,R) subspace which includes the string coupling, overall volume, Ramond zero-form and six-form and NS axion. Using the non-Abelian Fourier expansion of the Eisenstein series attached to the principal series of SL(3,R), first worked out by Vinogradov and Takhtajan 30 years ago, we extract the contributions of D(-1)-D5 and NS5-brane instantons, corresponding to the Abelian and non-Abelian coefficients, respectively. In particular, the contributions of k NS5-branes can be summarized into a vector of wave functions \Psi_{k,l}, l=0... k-1, as expected on general grounds. We also point out that for more general models with a symmetric moduli space K G, the minimal theta series of G generates an infinite series of exponential corrections of the form required for "small" D(-1)-D1-D3-D5-NS5 instanton bound states. As a mathematical spin-off, we make contact with earlier results in the literature about the spherical vectors for the principal series of SL(3,R) and for minimal representations.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Pioline, Boris
(författare)
-
Chalmers tekniska högskola
(creator_code:org_t)
Sammanhörande titlar
-
Ingår i:Preprint: arXiv:0902.3274 [hep-th]
Internetlänk
Hitta via bibliotek
Till lärosätets databas