Gravitational dressing of D-instantons

Abstract

The non-perturbative corrections to the universal hypermultiplet moduli space metric in the type-IIA superstring compactification on a Calabi - Yau threefold are investigated in the presence of 4d, N = 2 supergravity. These corrections come from multiple wrapping of the BPS (Euclidean) D2-branes around certain (BPS) Calabi - Yau 3-cycles, and they are known as the D-instantons. The exact universal hypermultiplet metric is governed by a quaternionic potential that satisfies the SU(∞) Toda equation. When the supergravity decouples, the metric is hyper-Kähler. We propose the mechanism that gravitationally dress any (D-instanton) hyper-Kähler metric to the (universal hypermultiplet) quaternionic metric of the same dimension.

Original language	English
Pages (from-to)	262-267
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	504
Issue number	3
DOIs	https://doi.org/10.1016/S0370-2693(01)00304-5
Publication status	Published - 12 Apr 2001

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/S0370-2693(01)00304-5

Fingerprint Dive into the research topics of 'Gravitational dressing of D-instantons'. Together they form a unique fingerprint.

Cite this

Ketov, S. V. (2001). Gravitational dressing of D-instantons. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 504(3), 262-267. https://doi.org/10.1016/S0370-2693(01)00304-5

@article{da6a788950464369a226bbc09e222365,

title = "Gravitational dressing of D-instantons",

abstract = "The non-perturbative corrections to the universal hypermultiplet moduli space metric in the type-IIA superstring compactification on a Calabi - Yau threefold are investigated in the presence of 4d, N = 2 supergravity. These corrections come from multiple wrapping of the BPS (Euclidean) D2-branes around certain (BPS) Calabi - Yau 3-cycles, and they are known as the D-instantons. The exact universal hypermultiplet metric is governed by a quaternionic potential that satisfies the SU(∞) Toda equation. When the supergravity decouples, the metric is hyper-K{\"a}hler. We propose the mechanism that gravitationally dress any (D-instanton) hyper-K{\"a}hler metric to the (universal hypermultiplet) quaternionic metric of the same dimension.",

author = "Ketov, {Sergei V.}",

year = "2001",

month = apr,

day = "12",

doi = "10.1016/S0370-2693(01)00304-5",

language = "English",

volume = "504",

pages = "262--267",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "3",

}

TY - JOUR

T1 - Gravitational dressing of D-instantons

AU - Ketov, Sergei V.

PY - 2001/4/12

Y1 - 2001/4/12

N2 - The non-perturbative corrections to the universal hypermultiplet moduli space metric in the type-IIA superstring compactification on a Calabi - Yau threefold are investigated in the presence of 4d, N = 2 supergravity. These corrections come from multiple wrapping of the BPS (Euclidean) D2-branes around certain (BPS) Calabi - Yau 3-cycles, and they are known as the D-instantons. The exact universal hypermultiplet metric is governed by a quaternionic potential that satisfies the SU(∞) Toda equation. When the supergravity decouples, the metric is hyper-Kähler. We propose the mechanism that gravitationally dress any (D-instanton) hyper-Kähler metric to the (universal hypermultiplet) quaternionic metric of the same dimension.

AB - The non-perturbative corrections to the universal hypermultiplet moduli space metric in the type-IIA superstring compactification on a Calabi - Yau threefold are investigated in the presence of 4d, N = 2 supergravity. These corrections come from multiple wrapping of the BPS (Euclidean) D2-branes around certain (BPS) Calabi - Yau 3-cycles, and they are known as the D-instantons. The exact universal hypermultiplet metric is governed by a quaternionic potential that satisfies the SU(∞) Toda equation. When the supergravity decouples, the metric is hyper-Kähler. We propose the mechanism that gravitationally dress any (D-instanton) hyper-Kähler metric to the (universal hypermultiplet) quaternionic metric of the same dimension.

UR - http://www.scopus.com/inward/record.url?scp=0035848942&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035848942&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(01)00304-5

DO - 10.1016/S0370-2693(01)00304-5

M3 - Article

AN - SCOPUS:0035848942

VL - 504

SP - 262

EP - 267

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 3

ER -