Abstract
We calculate some nonperturbative (D-instanton) quantum corrections to the moduli space metric of several (n > 1) identical matter hypermultiplets for the type-IIA superstrings compactified on a Calabi-Yau threefold, near conifold singularities. We find a nontrivial deformation of the (real) 4n-dimensional hypermultiplet moduli space metric due to the infinite number of D-instantons, under the assumption of n tri-holomorphic commuting isometries of the metric, in the hyper-Kähler limit (i.e. in the absence of gravitational corrections).
Original language | English |
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Pages (from-to) | 2645-2653 |
Number of pages | 9 |
Journal | Modern Physics Letters A |
Volume | 19 |
Issue number | 35 |
DOIs | |
Publication status | Published - 20 Nov 2004 |
Keywords
- Duality
- Instantons
- Strings
- Supersymmetry
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Astronomy and Astrophysics