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SUMMARY:Localised Anti-Branes in Flux Backgrounds - Gavin Hartnett (Southa
 mpton)
DTSTART:20160212T130000Z
DTEND:20160212T140000Z
UID:TALK63175@talks.cam.ac.uk
CONTACT:43345
DESCRIPTION:Solutions corresponding to finite temperature (anti)-D3 and M2
  branes localised in flux backgrounds are constructed in a linear approxim
 ation. The flux backgrounds considered are toy models for the IR of the Kl
 ebanov-Strassler solution and its M-theory analogue\, the Cvetič-Gibbons-
 Lü-Pope solution. Smooth solutions exist for either sign charge\, in star
 k contrast with the previously considered case of smeared black branes. Th
 at the singularities of the anti-branes in the zero temperature extremal l
 imit can be shielded behind a finite temperature horizon indicates that th
 e singularities are physical and resolvable by string theory. As the charg
 e of the branes grows large and negative\, the flux at the horizon increas
 es without bound and diverges in the extremal limit\, which suggests a res
 olution via brane polarisation à la Polchinski-Strassler. It therefore ap
 pears that the anti-brane singularities do not indicate a problem with the
  SUSY-breaking metastable states corresponding to expanded anti-brane conf
 igurations in these backgrounds\, nor with the use of these states in cons
 tructing the de Sitter landscape.
LOCATION:Pavilion B Potter Room (B1.19)
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