54 citations · 188 across the 10 of their papers we have counts for
10 papers
Parametric resonance after hilltop inflation caused by an inhomogeneous inflaton field
Stefan Antusch, Francesco Cefala, David Nolde +1
We study preheating after hilltop inflation where the inflaton couples to another scalar field, e.g. a right-handed sneutrino, which provides a mechanism for generating the correct…
Realising effective theories of tribrid inflation: Are there effects from messenger fields?
Stefan Antusch, David Nolde
Tribrid inflation is a variant of supersymmetric hybrid inflation in which the inflaton is a matter field (which can be charged under gauge symmetries) and inflation ends by a GUT-…
Hill crossing during preheating after hilltop inflation
Stefan Antusch, David Nolde, Stefano Orani
In 'hilltop inflation', inflation takes place when the inflaton field slowly rolls from close to a maximum of its potential (i.e. the 'hilltop') towards its minimum. When the infla…
False vacuum energy dominated inflation with large and the importance of
Stefan Antusch, Francesco Cefala, David Nolde +1
We investigate to which extent and under which circumstances false vacuum energy () dominated slow-roll inflation is compatible with a large tensor-to-scalar ratio $r = O(0.1)…
BICEP2 implications for single-field slow-roll inflation revisited
Stefan Antusch, David Nolde
It is generally believed that in single-field slow-roll inflation, a large tensor-to-scalar ratio requires inflaton field values close to or above the Planck scale. Recen…
Hilltop inflation with preinflation from coupling to matter fields
Stefan Antusch, David Nolde, Stefano Orani
We propose a class of models of supersymmetric hilltop inflation (also called "new inflation") where the initial conditions of the inflaton close to the hilltop are generated throu…
Effects of the imaginary inflaton component in supergravity new inflation
David Nolde
When models of new inflation are implemented in supergravity, the inflaton is a complex and not a real scalar field. As a complex scalar field has two independent components, super…
Matter inflation with A_4 flavour symmetry breaking
Stefan Antusch, David Nolde
We discuss model building in tribrid inflation, which is a framework for realising inflation in the matter sector of supersymmetric particle physics models. The inflaton is a D-fla…
Kähler-driven Tribrid Inflation
Stefan Antusch, David Nolde
We discuss a new class of tribrid inflation models in supergravity, where the shape of the inflaton potential is dominated by effects from the Kähler potential. Tribrid inflation i…
Pseudosmooth Tribrid Inflation
Stefan Antusch, David Nolde, Mansoor Ur Rehman
We explore a new class of supersymmetric models of inflation where the inflaton is realised as a combination of a Higgs field and (gauge non-singlet) matter fields, using a "tribri…