120 citations
- The Graduate University for Advanced Studies, SOKENDAIJP8 papers
- High Energy Accelerator Research OrganizationJP7 papers
- Institute of Particle and Nuclear Studies7 papers
- RIKEN Center for Advanced Intelligence ProjectJP7 papers
- Guangdong University of TechnologyCN5 papers
- Lancaster UniversityGB5 papers
- Nagoya UniversityJP5 papers
- Hangzhou Dianzi UniversityCN4 papers
- Saitama UniversityJP4 papers
- Sun Yat-sen UniversityCN4 papers
- The University of TokyoJP3 papers
- Chuo UniversityJP2 papers
12 papers · 1 filter
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…
N = 2 SUSY QED in nonlinear/linear SUSY relation
Kazunari Shima, Motomu Tsuda
We show systematically the relation between a N = 2 nonlinear supersymmetric (NLSUSY) model and a N = 2 SUSY QED theory by means of the superfield formulation in two dimensional sp…
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…
On Wess-Zumino gauge
Kazunari Shima, Motomu Tsuda
In the relation between the linear (L) supersymmetry (SUSY) representation and the nonlinear (NL) SUSY representation we discuss the role of the Wess-Zumino gauge. We show in two d…
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…