Jul 16 – 22, 2009
Kraków, Poland
Europe/Warsaw timezone

Models of Inflation in Supergravity

Jul 18, 2009, 12:05 PM
Middle Lecture Hall B (Kraków, Poland)

Middle Lecture Hall B

Kraków, Poland

The Auditorium Maximum of the Jagiellonian University 33 Krupnicza Street 31-123 Kraków
Cosmology and Gravitational Waves I. Cosmology and Gravitational Waves


Dr Stefan Antusch (MPI Munich)


In supergravity, the construction of viable models of inflation is challenging due to the so-called $\eta$-problem, which states that the flatness of the inflaton potential is typically spoiled by supergravity corrections. We discuss strategies to overcome this problem and how they can be applied to classes of inflationary models. In this context, we also propose a new class of models, referred to as tribrid inflation, which is particularly suitable for solving the $\eta$-problem using either a Heisenberg symmetry or a shift symmetry of the Kaehler potential.

Primary author

Dr Stefan Antusch (MPI Munich)

Presentation materials