192 citations · 2.8k across the 75 of their papers we have counts for
6 papers · 1 filter
Very Massive Tracers and Higher Derivative Biases
Tomohiro Fujita, Valentin Mauerhofer, Leonardo Senatore +2
Most of the upcoming cosmological information will come from analyzing the clustering of the Large Scale Structures (LSS) of the universe through LSS or CMB observations. It is the…
Primordial Gravitational Waves from Axion-Gauge Fields Dynamics
Emanuela Dimastrogiovanni, Matteo Fasiello, Tomohiro Fujita
Inspired by the chromo-natural inflation model of Adshead&Wyman, we reshape its scalar content to relax the tension with current observational bounds. Besides an inflaton, the setu…
Hubble induced mass after inflation in spectator field models
Tomohiro Fujita, Keisuke Harigaya
Spectator field models such as the curvaton scenario and the modulated reheating are attractive scenarios for the generation of the cosmic curvature perturbation, as the constraint…
Fermionic Schwinger effect and induced current in de Sitter space
Takahiro Hayashinaka, Tomohiro Fujita, Jun'ichi Yokoyama
We explore Schwinger effect of spin 1/2 charged particles with static electric field in 1+3 dimensional de Sitter spacetime. We analytically calculate the vacuum expectation value…
Pre-reheating Magnetogenesis in the Kinetic Coupling Model
Tomohiro Fujita, Ryo Namba
Recent blazar observations provide growing evidence for the presence of magnetic fields in the extragalactic regions. While a natural speculation is to associate the production to…
Large-scale magnetic fields can explain the baryon asymmetry of the Universe
Tomohiro Fujita, Kohei Kamada
Helical hypermagnetic fields in the primordial Universe can produce the observed amount of baryon asymmetry through the chiral anomaly without any ingredients beyond the standard m…