A geometric bound for F-term inflation

16 mins 56 secs, 15.50 MB, MP3 44100 Hz, 125.01 kbits/sec

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Description:	Borghese, A (Rijksuniversiteit Groningen) Thursday 28 June 2012, 17:30-17:45


Created:	2012-07-09 14:46
Collection:	Mathematics and Applications of Branes in String and M-theory
Publisher:	Isaac Newton Institute
Copyright:	Borghese, A
Language:	eng (English)


Abstract:	There has been a lot of efforts during the last decade in order to provide a supergravity realisation of inflation. This is of crucial importance if one look at supergravity as the bridge connecting the effective field theory of inflation and a possible UV complete theory like string theory. Within a supergravity theory the inflationary dynamics is tightly constrained. I will discuss a particular kind of geometric constraints which arise by considering particular directions on the scalar manifold, namely the ones which are singled out by the process of supersymmetry breaking (the so called sGoldstino’s). As an example I will consider the constraint in the case of N=1, F-term inflation.

Abstract:

There has been a lot of efforts during the last decade in order to provide a supergravity realisation of inflation. This is of crucial importance if one look at supergravity as the bridge connecting the effective field theory of inflation and a possible UV complete theory like string theory. Within a supergravity theory the inflationary dynamics is tightly constrained. I will discuss a particular kind of geometric constraints which arise by considering particular directions on the scalar manifold, namely the ones which are singled out by the process of supersymmetry breaking (the so called sGoldstino’s). As an example I will consider the constraint in the case of N=1, F-term inflation.

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