期刊
FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS
卷 67, 期 7, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/prop.201900026
关键词
de Sitter solution; flux compactification; supergravity; swampland
Classical 10d string backgrounds with a 4d de Sitter space-time, D-brane and orientifold sources, are commonly believed to satisfy the following: There is no classical de Sitter solution with parallel sources. Classical de Sitter solutions with intersecting sources are unstable. Classical de Sitter solutions cannot have at the same time a large internal volume, a small string coupling, a bounded number of orientifolds and quantized fluxes. 1.2.3.These three conjectures are of particular relevance to the swampland program, and if true, they challenge the connection of string theory to cosmology. We restrict here to a standard solution ansatz for which the problem is well-defined, and we still fail to prove analytically any of these conjectures. While developing new tools and obtaining new constraints, we identify remaining corners of parameter space where counter-examples to these conjectures could be found.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据