Takeshi Kobayashi

Takeshi Kobayashi's picture
Canadian Institute for Theoretical Astrophysics (CITA)

Area of Research:
Phone: x7052

Research Interests

I have worked on early universe cosmology, focusing especially on its connections with microscopic physics. I am interested in obtaining a unified view of the early universe through theoretical physics (such as string theory, particle physics, or some other quantum gravity theory), as well as extracting information on high energy physics from cosmological observations.

Positions Held

  • 2011 - present Perimeter Institute for Theoretical Physics, Associate Postdoctoral Researcher
  • 2011 - present Canadian Institute for Theoretical Astrophysics, University of Toronto, Postdoctoral Fellow
  • 2011 - 2012 Research Center for the Early Universe, The University of Tokyo, Postdoctoral Fellow

Recent Publications

  • Takeshi Kobayashi, Tomo Takahashi, Large Tensor-to-Scalar Ratio in Small-Field Inflation, Phys.Rev.Lett. 110 (2013) 231101, arXiv: 1303.0242
  • Masahiro Kawasaki, Takeshi Kobayashi, Fuminobu Takahashi, Non-Gaussianity from Axionic Curvaton, JCAP 1303 (2013) 016, arXiv: 1210.6595
  • Takeshi Kobayashi, Jun'ichi Yokoyama, Primordial Spikes from Wrapped Brane Inflation, JCAP02(2013)005, arXiv: 1210.4427
  • Takeshi Kobayashi, Tomo Takahashi, Runnings in the Curvaton, JCAP06(2012)004, arXiv: 1203.3011
  • Takeshi Kobayashi, Fuminobu Takahashi, Tomo Takahashi, Masahide Yamaguchi, Dark Radiation from Modulated Reheating, JCAP03(2012)036, arXiv: 1111.1336
  • Masahiro Kawasaki, Takeshi Kobayashi, Fuminobu Takahashi, Non-Gaussianity from Curvatons Revisited, Phys.Rev.D84:123506,2011, arXiv: 1107.6011
  • Rolling in the Modulated Reheating Scenario, Naoya Kobayashi, Takeshi Kobayashi, Adrienne L. Erickcek, arXiv: 1308.4154
  • Isocurvature Constraints and Anharmonic Effects on QCD Axion Dark Matter, Takeshi Kobayashi, Ryosuke Kurematsu, Fuminobu Takahashi, arXiv: 1304.0922
  • Spectator field models in light of spectral index after Planck, Takeshi Kobayashi, Fuminobu Takahashi, Tomo Takahashi, Masahide Yamaguchi, arXiv: 1303.6255

Seminars

  • Large Tensor-to-Scalar Ratio in Small-Field Inflation, GRAPPA, University of Amsterdam
  • Large Tensor-to-Scalar Ratio in Small-Field Inflation, APC, Université Paris Diderot-Paris 7
  • Large Tensor-to-Scalar Ratio in Small-Field Inflation, University of Guelph
  • Primordial Spikes from Wrapped Brane Inflation, CP3, Louvain University
  • Primordial Spikes from Wrapped Brane Inflation, Kavli IPMU, The University of Tokyo
  • Density Perturbations from Curvatons Revisited, McGill University
  • Density Perturbations from Curvatons Revisited, PASCOS 2012, Merida, Mexico
  • Perturbation Generating Mechanisms and Weird Signals in the Sky, RESCEU, Tokyo University
  • Density Perturbations from Curvatons Revisited, 5th Conference on String and Cosmology, Oita, Japan
  • Generation of Density Perturbations in Inflationary Cosmology, Tokyo University
  • D-Brane Inflation in String Cosmology, Toronto University
  • PIRSA:12040058, Density Perturbations from Curvatons Revisited, 2012-04-24, Cosmology & Gravitation