Numerical Hermitian Yang-Mills connections and Kahler cone substructure

作者：Anderson Lara B^*; Braun Volker; Ovrut Burt A

来源：The Journal of High Energy Physics, 2012, 2012(1): 014.

DOI：10.1007/JHEP01(2012)014

• Differential and Algebraic Geometry
• Superstrings and Heterotic Strings
• Superstring Vacua

We further develop the numerical algorithm for computing the gauge connection of slope-stable holomorphic vector bundles on Calabi-Yau manifolds. In particular, recent work on the generalized Donaldson algorithm is extended to bundles with Kahler cone substructure on manifolds with h(1,1) > 1. Since the computation depends only on a one-dimensional ray in the Kahler moduli space, it can probe slope-stability regardless of the size of h(1,1). Suitably normalized error measures are introduced to quantitatively compare results for different directions in Kahler moduli space. A significantly improved numerical integration procedure based on adaptive refinements is described and implemented. Finally, a rapid computational check is proposed for probing the slope-stable stability properties of a given vector bundle.

• 出版日期2012-1