Publications at the Riemann Center

Instantons and Chern-Simons flows in 6, 7 and 8 dimensions

Authored by

O. Lechtenfeld

Abstract

The existence of K-instantons on a cylinder M 7 = ℝ τ × K/H over a homogeneous nearly Käller 6-manifold K/H requires a conformally parallel or a cocalibrated G 2-structure on M 7. The generalized anti-self-duality on M 7 implies a Chern-Simons flow on K/H which runs between instantons on the coset. For K-equivariant connections, the torsionful Yang-Mills equation reduces to a particular quartic dynamics for a Newtonian particle on ℂ. When the torsion corresponds to one of the G 2-structures, this dynamics follows from a gradient or hamiltonian flow equation, respectively. We present the analytic (kink-type) solutions and plot numerical non-BPS solutions for general torsion values interpolating between the instantonic ones.

Details

Organisation(s)
Institute of Theoretical Physics
Riemann Center for Geometry and Physics
Type
Article
Journal
Physics of particles and nuclei
Volume
43
Pages
569-576
No. of pages
8
ISSN
1063-7796
Publication date
09.2012
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Nuclear and High Energy Physics
Electronic version(s)
https://doi.org/10.1134/S1063779612050218 (Access: Unknown )