Publications at the Riemann Center

Instantons on sine-cones over Sasakian manifolds

Authored by

Severin Bunk, Tatiana A. Ivanova, Olaf Lechtenfeld, Alexander D. Popov, Marcus Sperling

Abstract

We investigate instantons on sine-cones over Sasaki-Einstein and 3-Sasakian manifolds. It is shown that these conical Einstein manifolds are Kähler with torsion (KT) manifolds admitting Hermitian connections with totally antisymmetric torsion. Furthermore, a deformation of the metric on the sine-cone over 3-Sasakian manifolds allows one to introduce a hyper-Kähler with torsion (HKT) structure. In the large-volume limit these KT and HKT spaces become Calabi-Yau and hyper-Kähler conifolds, respectively. We construct gauge connections on complex vector bundles over conical KT and HKT manifolds which solve the instanton equations for Yang-Mills fields in higher dimensions.

Details

Organisation(s)
Institute of Theoretical Physics
Riemann Center for Geometry and Physics
External Organisation(s)
Joint Institute for Nuclear Research
Type
Article
Journal
Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume
90
ISSN
1550-7998
Publication date
23.09.2014
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Nuclear and High Energy Physics, Physics and Astronomy (miscellaneous)
Electronic version(s)
https://doi.org/10.1103/PhysRevD.90.065028 (Access: Unknown )