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SUMMARY:Arthur Hebecker (U. Heidelberg\, ITP)
DTSTART:20201015T130000Z
DTEND:20201015T140000Z
DTSTAMP:20260423T005756Z
UID:HEPTUW/8
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/HEPTUW/8/">D
 e Sitter from String Theory: Control Issues of KKLT</a>\nby Arthur Hebecke
 r (U. Heidelberg\, ITP) as part of HEP seminars TU Wien (Vienna)\n\n\nAbst
 ract\nAfter a brief introduction to the problem of realising de Sitter spa
 ce in string compactifications\, I will describe the specific proposal of 
 Kachru\, Kallosh\, Linde and Trivedi (KKLT)\, including some of its critic
 ism. I will then explain why\, according our recent analysis\, extended si
 ngularities in the bulk of the compact space appear to generically threate
 n the construction. Possible escape routes from this "bulk singularity pro
 blem" will also be discussed.\n
LOCATION:https://researchseminars.org/talk/HEPTUW/8/
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