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SUMMARY:Primordial non-Gaussianities from string theory:  multifield infla
 tion with non-standard actions - Sebastien Renaux-Petel\, APC Paris
DTSTART:20091120T130000Z
DTEND:20091120T140000Z
UID:TALK20455@talks.cam.ac.uk
CONTACT:David Seery
DESCRIPTION:High-energy physics theories motivates scenarios of inflation 
 different from the standard single-field slow-roll paradigm. In this talk\
 , I will discuss some features of multiple-field inflation with non standa
 rd kinetic terms. These models can in particular generate primordial densi
 ty fluctuations with a large non-Gaussian component that could be detected
  by forthcoming experiments like the Planck\nsatellite. Special emphasis w
 ill be given to multifield Dirac-Born-Infeld (DBI) inflation which is a st
 ring-inspired scenario in which a D3-brane moves in a higher-dimensional s
 pacetime.
LOCATION:Pavilion B Potter Room (B1.19)
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