11 citations · 14 across the 4 of their papers we have counts for
5 papers
Seeing in the Dark: Gravitational Waves from Resonant Production of Dark Photon Dark Matter
Yanou Cui, Pankaj Saha, Evangelos I. Sfakianakis
Ultralight dark photons (DPs) are well-motivated dark matter candidates. A promising yet underexplored mechanism for their relic abundance is parametric resonance in the Abelian-Hi…
Nonlinear Lattice Framework for Inflation: Bridging stochastic inflation and the formalism
Pankaj Saha, Yuichiro Tada, Yuko Urakawa
Understanding when inflationary perturbations become genuinely nonlinear near the horizon crossing requires methods that go beyond both linear perturbation theory and the gradient…
Potential Surge Preheating: enhanced resonance from potential features
Pankaj Saha, Yuko Urakawa
We investigate the effects of local features in the inflationary potential on the preheating dynamics after inflation. We show that a small feature in the potential can enhance the…
Probing baryogenesis with gravitational waves
Yanou Cui, Anish Ghoshal, Pankaj Saha +1
Affleck-Dine (AD) baryogenesis is compelling yet challenging to probe because of the high-energy physics involved. We demonstrate that this mechanism can be generically realized wi…
Gravitational Wave Symphony from Oscillating Spectator Scalar Fields
Yanou Cui, Pankaj Saha, Evangelos I. Sfakianakis
We investigate a generic source of stochastic gravitational wave background due to the parametric resonance of oscillating scalar fields in the early Universe. By systematically an…