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Heterotic Moduli Stabilization with Fractional Chern-Simons Invariants.

DE2004826511

Publication Date	2003
Personal Author	Gukov, G.; Kachru, S.; Liu, X.; McAllister, L.
Page Count	48
Abstract	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.
Keywords	String theory Stabilization Instantons D branes Field theory Construction Coupling Invariants Symmetry breaking Fluxes Chern-Simons theory
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Harvard Univ., Cambridge, MA. Dept. of Physics.; Stanford Univ., CA. Dept. of Physics.; Department of Energy, Washington, DC.
Supplemental Notes	Prepared in cooperation with Stanford Univ., CA. Dept. of Physics. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200510

Heterotic Moduli Stabilization with Fractional Chern-Simons Invariants.

Heterotic Moduli Stabilization with Fractional Chern-Simons Invariants.
DE2004826511

Publication Date	2003
Personal Author	Gukov, G.; Kachru, S.; Liu, X.; McAllister, L.
Page Count	48
Abstract	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.
Keywords	String theory Stabilization Instantons D branes Field theory Construction Coupling Invariants Symmetry breaking Fluxes Chern-Simons theory
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Harvard Univ., Cambridge, MA. Dept. of Physics.; Stanford Univ., CA. Dept. of Physics.; Department of Energy, Washington, DC.
Supplemental Notes	Prepared in cooperation with Stanford Univ., CA. Dept. of Physics. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200510