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SUMMARY:Vincent Van Hemelryck (KU Leuven)
DTSTART:20211110T150000Z
DTEND:20211110T160000Z
DTSTAMP:20260423T052448Z
UID:AnLy/1
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AnLy/1/">Sca
 le-separated AdS4 vacua of IIA orientifolds and M-theory</a>\nby Vincent V
 an Hemelryck (KU Leuven) as part of AnLy Strings and Fields online seminar
 s\n\n\nAbstract\nObtaining string compactifications where the KK scale is 
 much higher than the cosmological constant scale is quite challenging. Suc
 h a separation of scales is however necessary for the theory to be genuine
 ly lower-dimensional. In massive type IIA string theory there are such sca
 le-separated vacua\, e.g. the DGKT AdS4 solutions. It has been shown recen
 tly that the classical orientifold backreaction in these vacua can be tune
 d small. In this talk\, I show that massless IIA on the other hand allows 
 both weakly and strongly coupled AdS4 vacua that exhibit scale separation 
 and for which the backreaction can be tuned small as well. I will give evi
 dence that the strongly coupled solutions can be lifted to scale separated
  and sourceless (but classically singular) geometries in 11D supergravity.
 \n
LOCATION:https://researchseminars.org/talk/AnLy/1/
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