1.4k citations · 6.7k across the 82 of their papers we have counts for
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astro-ph2000★ 5 cited
Determining the Equation of State of the Expanding Universe Using a New Independent Variable
Takashi Nakamura, Takeshi Chiba
To determine the equation of state of the universe, we propose to use a new independent variable , where and are the present Hubble pa…
astro-ph2000★ 1.4k cited
Kinetically Driven Quintessence
Takeshi Chiba, Takahiro Okabe, Masahide Yamaguchi
Recently, a novel class of models for inflation has been found in which the inflationary dynamics is driven solely by (non-canonical) kinetic terms rather than by potential terms.…
gr-qc2000★ 41 cited
Scalar-Tensor Gravity in Two 3-brane System
Takeshi Chiba
We derive the low-energy effective action of four-dimensional gravity in the Randall-Sundrum scenario in which two 3-branes of opposite tension reside in a five-dimensional spaceti…