De Sitter from String Theory: Control Issues of KKLT

Abstract: After a brief introduction to the problem of realising de Sitter space in string compactifications, I will describe the specific proposal of Kachru, Kallosh, Linde and Trivedi (KKLT), including some of its criticism. I will then explain why, according our recent analysis, extended singularities in the bulk of the compact space appear to generically threaten the construction. Possible escape routes from this "bulk singularity problem" will also be discussed.

general relativity and quantum cosmologyHEP - phenomenologyHEP - theorymathematical physicsquantum physics

Audience: researchers in the topic

HEP seminars TU Wien (Vienna)

Series comments: ID number: 954 8284 9369