120 citations · 1.6k across the 95 of their papers we have counts for
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Curvatons and inhomogeneous scenarios with deviation from slow-roll
Tomohiro Matsuda
The spectral index is studied at the point where scalar fields deviate from slow-roll during inflation. Considering the deviation that may cause a significant difference to the tim…
Non-standard kinetic term as a natural source of non-Gaussianity
Tomohiro Matsuda
We consider reheating after inflation with a non-standard kinetic term. We show that the difference in the kinetic term in different Hubble patches inherited from the long-waveleng…
Modulated Inflation (@SUSY08)
Tomohiro Matsuda
We consider cosmological perturbations caused by modulated inflaton velocity. During inflation, the inflaton motion is damped and the velocity is determined by the parameters such…
Modulated inflation from kinetic term
Tomohiro Matsuda
We study modulated inflation from kinetic term. Using the Mukhanov-Sasaki variable, it is possible to determine how mixing induced by the kinetic term feeds the curvature perturbat…
Running spectral index from shooting-star moduli
Tomohiro Matsuda
We construct an inflationary model that is consistent with both large non-Gaussianity and a running spectral index. The scenario of modulated inflation suggests that modulated pert…
Modulated Inflation
Tomohiro Matsuda
We have studied modulated inflation that generates curvature perturbation from light-field fluctuation. As discussed in previous works, even if the fluctuation of the inflaton itse…