80 citations · 212 across the 6 of their papers we have counts for
6 papers
Parity Violating Non-Gaussianity from Axion-Gauge Field Dynamics
Ogan Özsoy
We study scalar-tensor-tensor and tensor-scalar-scalar three point cross correlations generated by the dynamics of a transiently rolling spectator axion- gauge field…
Synthetic Gravitational Waves from a Rolling Axion Monodromy
Ogan Özsoy
In string theory inspired models of axion-like fields, sub-leading non-perturbative effects, if sufficiently large, can introduce steep cliffs and gentle plateaus onto the underlyi…
On the slope of curvature power spectrum in non-attractor inflation
Ogan Özsoy, Gianmassimo Tasinato
The possibility that primordial black holes constitute a fraction of dark matter motivates a detailed study of possible mechanisms for their production. Black holes can form by the…
Electromagnetic probes of primordial black holes as dark matter
Y. Ali-Haimoud, S. Clesse, J. Garcia-Bellido +91
The LIGO discoveries have rekindled suggestions that primordial black holes (BHs) may constitute part to all of the dark matter (DM) in the Universe. Such suggestions came from 1)…
On Synthetic Gravitational Waves from Multi-field Inflation
Ogan Özsoy
We revisit the possibility of producing observable tensor modes through a continuous particle production process during inflation. Particularly, we focus on the multi-field realiza…
Supersymmetry, Nonthermal Dark Matter and Precision Cosmology
Richard Easther, Richard Galvez, Ogan Ozsoy +1
Within the Minimal Supersymmetric Standard Model (MSSM), LHC bounds suggest that scalar superpartner masses are far above the electroweak scale. Given a high superpartner mass, non…