54 citations · 183 across the 10 of their papers we have counts for
8 papers · 1 filter
Probing inflationary moduli space with gravitational waves
Shinsuke Kawai, Jinsu Kim
We investigate the spectrum of gravitational waves arising from primordial inflation in the presence of a string-theoretical higher curvature correction, specifically, the Gauss-Bo…
Nonminimally Assisted Inflation: A General Analysis
Sang Chul Hyun, Jinsu Kim, Tatsuki Kodama +2
The effects of a scalar field, known as the "assistant field," which nonminimally couples to gravity, on single-field inflationary models are studied. The analysis provides analyti…
Primordial black holes and gravitational waves from nonminimally coupled supergravity inflation
Shinsuke Kawai, Jinsu Kim
We study the formation of primordial black holes and the generation of gravitational waves in a class of cosmological models that are direct supersymmetric analogs of the observati…
Non-minimally assisted chaotic inflation
Sang Chul Hyun, Jinsu Kim, Seong Chan Park +1
Conventional wisdom says that a chaotic inflation model with a power-law potential is ruled out by the recent Planck-BICEP/Keck results. We find, however, that the model can be ass…
General Analytical Conditions for Inflaton Fragmentation: Quick and Easy Tests for its Occurrence
Jinsu Kim, John McDonald
Understanding the physics of inflaton condensate fragmentation in the early Universe is crucial as the existence of fragments in the form of non-topological solitons (oscillons or…
Primordial blackholes from Gauss-Bonnet-corrected single field inflation
Shinsuke Kawai, Jinsu Kim
Primordial blackholes formed in the early Universe via gravitational collapse of over-dense regions may contribute a significant amount to the present dark matter relic density. In…