Issues in IIA Uplifting

[摘要] Moduli stabilization in the type IIA massive string theory so far was achieved only in the AdS vacua. The uplifting to dS vacua has not been performed as yet: neither the analogs of type IIB anti-D3 brane at the tip of the conifold, nor the appropriate D-terms have been identified. The hope was recently expressed that the F-term uplifting may work. We investigate this possibility in the context of a simplified version of the type IIA model developed in hep-th/0505160 and find that the F-term does not uplift the AdS vacua to dS vacua with positive CC. Thus it remains a challenging task to find phenomenologically acceptable vacua in the type IIA string theory.

[发布日期] 2006-12-12 [发布机构] Stanford Linear Accelerator Center

[关键词] String Models;Particle Interactions Theory-Hep,Hepth;Theory-Hep,Hepth;72 Physics Of Elementary Particles And Fields;Stabilization