200 citations · 2.2k across the 48 of their papers we have counts for
14 papers · 1 filter
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…
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…
Gravitational wave spectra from oscillon formation after inflation
Takashi Hiramatsu, Evangelos I. Sfakianakis, Masahide Yamaguchi
We systematically investigate the preheating behavior of single field inflation with an oscillon-supporting potential. We compute the properties of the emitted gravitational waves…
Primordial non-Gaussianity from the Effects of the Standard Model Higgs during Reheating after Inflation
Aliki Litsa, Katherine Freese, Evangelos I. Sfakianakis +2
We propose a new way of studying the Higgs potential at extremely high energies. The Standard Model (SM) Higgs boson, as a light spectator field during inflation in the early Unive…
Large Density Perturbations from Reheating to Standard Model particles due to the Dynamics of the Higgs Boson during Inflation
Aliki Litsa, Katherine Freese, Evangelos I. Sfakianakis +2
Cosmic Microwave Background (CMB) observations are used to constrain reheating to Standard Model (SM) particles after a period of inflation. As a light spectator field, the SM Higg…