14 citations · 14 across the 3 of their papers we have counts for
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Neutrino mixing and gravitational production via inflation
Oleg Lebedev, Jong-Hyun Yoon
We develop the Bogolyubov coefficient formalism for gravitational production of fermions with time-dependent mixing, which allows us to study a prototype neutrino system. The neutr…
Quark, lepton and right-handed neutrino production via inflation
Duarte Feiteira, Fotis Koutroulis, Oleg Lebedev +1
Inflationary expansion of space-time provides us with an efficient particle production mechanism in the Early Universe. The fermion production efficiency depends critically on the…
Gravitational production of sterile neutrinos
Fotis Koutroulis, Oleg Lebedev, Stefan Pokorski
We consider gravitational production of singlet fermions such as sterile neutrinos during and after inflation. The production efficiency due to classical gravity is suppressed by t…