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SUMMARY:Non-Minimal M-flation
DTSTART;VALUE=DATE-TIME:20190625T124500Z
DTEND;VALUE=DATE-TIME:20190625T130000Z
DTSTAMP;VALUE=DATE-TIME:20191113T151713Z
UID:indico-contribution-3442249@indico.cern.ch
DESCRIPTION:Speakers: Amjad Ashoorioon (Institute for Research in Fundamen
tal Sciences (IPM))\nWe show how in a matrix inflationary model\, in which
there is a non-minimal coupling between the matrix inflatons and gravity
and we call non-$\\mathbb{M}$-flation for brevity\, some of the disadvanta
ges of the minimal model\, $ \\mathbb{M}$-flation\, can be avoided. In par
ticular\, the number of D3 branes can be reduced to $\\leq \\mathcal{O}(10
^2)$ which can alleviate the ``potential'' backreaction problem of large n
umber of D3 branes on the background geometry in the minimal model. This i
s achieved by values of non-minimal coupling of order few hundred\, which
is much smaller than what is required in Higgs Inflation. The prediction o
f the model in the symmetry breaking part of the potential $\\phi>\\mu$\,
which is a local attractor and can support eternal inflation\, consequentl
y becomes compatible with the latest PLANCK result. Contrary to minimal mo
del\, in which the spectator fields failed to deplete the energy of the in
flation at the end of inflation around the symmetry-breaking vacuum\, in n
on-MM-flation\, they can successfully reheat the universe. We also comment
on how this non-minimal coupling can arise in the string theory setup.\n\
nhttps://indico.cern.ch/event/782251/contributions/3442249/
LOCATION:CERN 500/1-001 - Main Auditorium
URL:https://indico.cern.ch/event/782251/contributions/3442249/
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