Heterotic Moduli Stabilization with Fractional Chern-Simons Invariants.

Gukov, G. ; Kachru, S. ; Liu, X. ; McAllister, L.

Technical Information Center Oak Ridge Tennessee

关键词: String theory;    Stabilization;    Instantons;    D branes;    Field theory;   

RP-ID  :  DE2004826511

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

We show that fractional flux from Wilson lines can stabilize the moduli of heterotic string compactifications on Calabi-Yau threefolds. We observe that the Wilson lines used in GUT symmetry breaking naturally induce a fractional flux. When combined with a hidden-sector gaugino condensate, this generates a potential for the complex structure moduli, Kaehler moduli, and dilaton. This potential has a supersymmetric AdS minimum at moderately weak coupling and large volume. Notably, the necessary ingredients for this construction are often present in realistic models. We explore the type IIA dual phenomenon, which involves Wilson lines in D6-branes wrapping a three-cycle in a Calabi-Yau, and comment on the nature of the fractional instantons which change the Chern-Simons invariant.