208 citations · 1.2k across the 28 of their papers we have counts for
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astro-ph.CO2026
Bumpy inflation from explosive particle production
Kaloian D. Lozanov, Xavier Pritchard, Misao Sasaki
We present a first-principles derivation of an effective inflaton potential with a bumpy feature. We consider the coupling of a spectator field χto the inflaton ϕsuch that χis mass…
astro-ph.CO2026
Constraining the inflaton potential with gravitational waves from oscillons
Kaloian D. Lozanov, Misao Sasaki, Jan Tränkle
Under certain conditions, the oscillating inflaton condensate filling the Universe after inflation can fragment and form so-called oscillons. These long-lived soliton-like field co…