D-instanton sums for matter hypermultiplets

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
Pages (from-to)	2645-2653
Number of pages	9
Journal	Modern Physics Letters A
Volume	19
Issue number	35
DOIs	https://doi.org/10.1142/S0217732304015865
Publication status	Published - 20 Nov 2004

Keywords

Duality
Instantons
Strings
Supersymmetry

ASJC Scopus subject areas

Nuclear and High Energy Physics
Astronomy and Astrophysics

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10.1142/S0217732304015865

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Ketov, S. V., Santillan, O. P., & Zorin, A. G. (2004). D-instanton sums for matter hypermultiplets. Modern Physics Letters A, 19(35), 2645-2653. https://doi.org/10.1142/S0217732304015865

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AU - Ketov, Sergei V.

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AU - Zorin, Andrei G.

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N2 - 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).

AB - 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).

KW - Duality

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KW - Strings

KW - Supersymmetry

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