Kazuya Koyama - Dissemin

Papers authored by Kazuya Koyama

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2009 Fabio P. Silva, Kazuya Koyama

Self-accelerating universe in Galileon cosmology

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Kazuya Koyama

, Roy Maartens, Yong-Seon Song

Velocities as a probe of dark sector interactions

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Shuntaro Mizuno, Frederico Arroja, Kazuya Koyama

Full quantum trispectrum in multifield DBI inflation

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Chiaki Hikage, Kazuya Koyama

, Takahiko Matsubara, Tomo Takahashi, Masahide Yamaguchi

Limits on isocurvature perturbations from non-Gaussianity inWMAPtemperature anisotropy

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Frederico Arroja, Shuntaro Mizuno, Kazuya Koyama

, Takahiro Tanaka

Full trispectrum in single field DBI inflation

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Shuntaro Mizuno, Frederico Arroja, Kazuya Koyama

, Takahiro Tanaka

Lorentz boost and non-Gaussianity in multifield DBI inflation

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Kazuya Koyama

, Atsushi Taruya, Takashi Hiramatsu

Nonlinear evolution of the matter power spectrum in modified theories of gravity

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Kazuya Koyama

, Antonio Padilla, Fabio P. Silva

Ghosts in asymmetric brane gravity and the decoupled stealth limit

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Yong-Seon Song, Kazuya Koyama

Consistency test of general relativity from large scale structure of the universe

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Kazuya Koyama

Modified Gravity as an Alternative to Dark Energy

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2008 Atsushi Taruya, Kazuya Koyama

, Takahiko Matsubara

Signature of primordial non-Gaussianity on the matter power spectrum

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Olindo Corradini, Kazuya Koyama

, Gianmassimo Tasinato

Induced gravity on intersecting brane worlds. II. Cosmology

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Tommaso Giannantonio, Yong-Seon Song, Kazuya Koyama

Detectability of a phantom-like braneworld model with the integrated Sachs-Wolfe effect

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Frederico Arroja, Kazuya Koyama

Non-Gaussianity from the trispectrum in general single field inflation

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Antonio Cardoso, Kazuya Koyama

, Sanjeev S. Seahra, Fabio P. Silva

Cosmological perturbations in the DGP braneworld: Numeric solution

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Olindo Corradini, Kazuya Koyama

, Gianmassimo Tasinato

Induced gravity on intersecting brane worlds: Maximally symmetric solutions

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Björn Malte Schäfer, Kazuya Koyama

Spherical collapse in modified gravity with the Birkhoff theorem

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Kazuya Koyama

, Andrew Mennim, David Wands

Brane-world inflation: Slow-roll corrections to the spectral index

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Shuntaro Mizuno, Kazuya Koyama

, Filippo Vernizzi, David Wands, Hideo Kodama, Kunihito Ioka

Primordial non-Gaussianities in new ekpyrotic cosmology

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Tsomuto Kobayashi, Frederico Arroja, Kazuya Koyama

, Tetsuya Shiromizu

Modulus stabilization and low energy effective theory in six-dimensional supergravity braneworlds

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Papers authored by Kazuya Koyama