Publications (162)
Density perturbations in general modified gravitational theories
Antonio De Felice, Shinji Mukohyama, Shinji Tsujikawa
Brane preheating
Shinji Tsujikawa, Kei-ichi Maeda, Shuntaro Mizuno
Nature of singularities in anisotropic string cosmology
Alexey Toporensky, Shinji Tsujikawa
Planck constraints on single-field inflation
Shinji Tsujikawa, Junko Ohashi, Sachiko Kuroyanagi +1
Hairy black-hole solutions in generalized Proca theories
Lavinia Heisenberg, Ryotaro Kase, Masato Minamitsuji +1
Cosmic microwave background and inflation in multi-fractional spacetimes
Gianluca Calcagni, Sachiko Kuroyanagi, Shinji Tsujikawa
General analytic formulae for attractor solutions of scalar-field dark energy models and their multi-field generalizations
Shinji Tsujikawa
Potential-driven Galileon inflation
Junko Ohashi, Shinji Tsujikawa
Cosmological perturbations and observational constraints on nonlocal massive gravity
Savvas Nesseris, Shinji Tsujikawa
Primordial non-Gaussianities in general modified gravitational models of inflation
Antonio De Felice, Shinji Tsujikawa
Cosmologies from higher-order string corrections
Shinji Tsujikawa
Dark energy and cosmological solutions in second-order string gravity
Gianluca Calcagni, Shinji Tsujikawa, M Sami
Screening fifth forces in generalized Proca theories
Antonio De Felice, Lavinia Heisenberg, Ryotaro Kase +3
Observational Constraints on Quintessence: Thawing, Tracker, and Scaling models
Takeshi Chiba, Antonio De Felice, Shinji Tsujikawa
Conditions for the cosmological viability of the most general scalar-tensor theories and their applications to extended Galileon dark energy models
Antonio De Felice, Shinji Tsujikawa
The dispersion of growth of matter perturbations in f(R) gravity
Shinji Tsujikawa, Radouane Gannouji, Bruno Moraes +1
Effective gravitational couplings for cosmological perturbations in generalized Proca theories
Antonio De Felice, Lavinia Heisenberg, Ryotaro Kase +3
Density perturbations in the Ekpyrotic Universe and string-inspired generalizations
Shinji Tsujikawa
Cosmological perturbations from multi-field inflation in generalized Einstein theories
Alexei A. Starobinsky, Shinji Tsujikawa, Jun'ichi Yokoyama
Possibility of realizing weak gravity in redshift space distortion measurements
Shinji Tsujikawa
Observational constraints on Galileon cosmology
Savvas Nesseris, Antonio De Felice, Shinji Tsujikawa
Inflationary preheating and primordial black holes
Bruce A. Bassett, Shinji Tsujikawa
Gauge-ready formulation of cosmological perturbations in scalar-vector-tensor theories
Lavinia Heisenberg, Ryotaro Kase, Shinji Tsujikawa
Quintessence: A Review
Shinji Tsujikawa
Solar system and equivalence principle constraints on f(R) gravity by chameleon approach
Salvatore Capozziello, Shinji Tsujikawa
Testing for double inflation with WMAP
David Parkinson, Shinji Tsujikawa, Bruce A. Bassett +1
Matter density perturbations and effective gravitational constant in modified gravity models of dark energy
Shinji Tsujikawa
Beyond generalized Proca theories
Lavinia Heisenberg, Ryotaro Kase, Shinji Tsujikawa
Generalized Galileon cosmology
Antonio De Felice, Shinji Tsujikawa
Implications of the B-mode Polarization Measurement for Direct Detection of Inflationary Gravitational Waves
Sachiko Kuroyanagi, Shinji Tsujikawa, Takeshi Chiba +1
Observational constraints on dark energy with a fast varying equation of state
Antonio De Felice, Savvas Nesseris, Shinji Tsujikawa
Distinguishing between inflationary models from cosmic microwave background
Shinji Tsujikawa
Generation of electromagnetic fields in string cosmology with a massive scalar field on the anti D-brane
Mohammad R. Garousi, M. Sami, Shinji Tsujikawa
Consistency of inflation and preheating in F(R) supergravity
Sergei V. Ketov, Shinji Tsujikawa
Aspects of String-Gas Cosmology at Finite Temperature
Bruce A. Bassett, Monica Borunda, Marco Serone +1
Density perturbations in f(R) gravity theories in metric and Palatini formalisms
Shinji Tsujikawa, Kotub Uddin, Reza Tavakol
The Subaru FMOS galaxy redshift survey (FastSound). IV. New constraint on gravity theory from redshift space distortions at $z\sim 1.4$
Teppei Okumura, Chiaki Hikage, Tomonori Totani +22
String-inspired cosmology: Late time transition from scaling matter era to dark energy universe caused by a Gauss-Bonnet coupling
Shinji Tsujikawa, M. Sami
A unified approach to scaling solutions in a general cosmological background
Shinji Tsujikawa, M. Sami
Multi-field fermionic preheating
Shinji Tsujikawa, Bruce A. Bassett, Fermin Viniegra
Generalized Brans-Dicke theories
Antonio De Felice, Shinji Tsujikawa
Constraints on massive vector dark energy models from integrated Sachs-Wolfe-galaxy cross-correlations
Shintaro Nakamura, Antonio De Felice, Ryotaro Kase +1
Dark energy in scalar-vector-tensor theories
Ryotaro Kase, Shinji Tsujikawa
Correlation-consistency cartography of the double inflation landscape
Shinji Tsujikawa, David Parkinson, Bruce A. Bassett
The fate of (phantom) dark energy universe with string curvature corrections
M. Sami, Alexey Toporensky, Peter V. Tretjakov +1
Vainshtein mechanism in second-order scalar-tensor theories
Antonio De Felice, Ryotaro Kase, Shinji Tsujikawa
Dynamics of dark energy
Edmund J. Copeland, M. Sami, Shinji Tsujikawa
Conical singularities and the Vainshtein screening in full GLPV theories
Ryotaro Kase, Shinji Tsujikawa, Antonio De Felice
Observational constraints on braneworld inflation: the effect of a Gauss-Bonnet term
Shinji Tsujikawa, M. Sami, Roy Maartens
Inflationary non-Gaussianities in the most general second-order scalar-tensor theories
Antonio De Felice, Shinji Tsujikawa
Inflation Dynamics and Reheating
Bruce A. Bassett, Shinji Tsujikawa, David Wands
Cosmology in generalized Proca theories
Antonio De Felice, Lavinia Heisenberg, Ryotaro Kase +3
Anisotropic power-law k-inflation
Junko Ohashi, Jiro Soda, Shinji Tsujikawa
Observational constraints on loop quantum cosmology
Martin Bojowald, Gianluca Calcagni, Shinji Tsujikawa
Realizing Scale-invariant Density Perturbations in Low-energy Effective String Theory
Zong-Kuan Guo, Nobuyoshi Ohta, Shinji Tsujikawa
Cosmological Scaling Solutions for Multiple Scalar Fields
Takeshi Chiba, Antonio De Felice, Shinji Tsujikawa
Probing the Coupling between Dark Components of the Universe
Zong-Kuan Guo, Nobuyoshi Ohta, Shinji Tsujikawa
Observational signatures of f(R) dark energy models that satisfy cosmological and local gravity constraints
Shinji Tsujikawa
Chameleon dark energy models with characteristic signatures
Radouane Gannouji, Bruno Moraes, David F. Mota +3
Dilatonic ghost condensate as dark energy
Federico Piazza, Shinji Tsujikawa
Preheating - cosmic magnetic dynamo ?
Bruce A. Bassett, Giuseppe Pollifrone, Shinji Tsujikawa +1
Cosmology in generalized Horndeski theories with second-order equations of motion
Ryotaro Kase, Shinji Tsujikawa
Fermion production from preheating-amplified metric perturbations
Bruce A. Bassett, Marco Peloso, Lorenzo Sorbo +1
Non-commutative inflation and the CMB
Shinji Tsujikawa, Roy Maartens, Robert Brandenberger
Power-laws f(R) theories are cosmologically unacceptable
Luca Amendola, David Polarski, Shinji Tsujikawa
Cosmology in scalar-vector-tensor theories
Lavinia Heisenberg, Ryotaro Kase, Shinji Tsujikawa
Existence and disappearance of conical singularities in Gleyzes-Langlois-Piazza-Vernizzi theories
Antonio De Felice, Ryotaro Kase, Shinji Tsujikawa
Phantom damping of matter perturbations
Luca Amendola, Shinji Tsujikawa, M. Sami
Thermodynamics in Modified Gravity Theories
Kazuharu Bamba, Chao-Qiang Geng, Shinji Tsujikawa
Observational signatures of the parametric amplification of gravitational waves during reheating after inflation
Sachiko Kuroyanagi, Chunshan Lin, Misao Sasaki +1
Observational test of inflation in loop quantum cosmology
Martin Bojowald, Gianluca Calcagni, Shinji Tsujikawa
Inflation and dark energy arising from geometrical tachyons
Sudhakar Panda, M. Sami, Shinji Tsujikawa
Instabilities in Horndeski Yang-Mills inflation
Jose Beltran Jimenez, Lavinia Heisenberg, Ryotaro Kase +2
When can preheating affect the CMB?
Shinji Tsujikawa, Bruce A. Bassett
Matter instabilities in general Gauss-Bonnet gravity
Antonio De Felice, David F. Mota, Shinji Tsujikawa
Phantom crossing, equation-of-state singularities, and local gravity constraints in f(R) models
Luca Amendola, Shinji Tsujikawa
Black holes in vector-tensor theories
Lavinia Heisenberg, Ryotaro Kase, Masato Minamitsuji +1
Massive fermion production in nonsingular superstring cosmology
Shinji Tsujikawa, Hiroki Yajima
Observational signatures of the theories beyond Horndeski
Antonio De Felice, Kazuya Koyama, Shinji Tsujikawa
The effective field theory of inflation/dark energy and the Horndeski theory
Shinji Tsujikawa
Chameleon scalar fields in relativistic gravitational backgrounds
Shinji Tsujikawa, Takashi Tamaki, Reza Tavakol
Observational constraints on patch inflation in noncommutative spacetime
Gianluca Calcagni, Shinji Tsujikawa
Construction of cosmologically viable f(G) gravity models
Antonio De Felice, Shinji Tsujikawa
Effective gravitational couplings for cosmological perturbations in the most general scalar-tensor theories with second-order field equations
Antonio De Felice, Tsutomu Kobayashi, Shinji Tsujikawa
Generic estimates for magnetic fields generated during inflation including Dirac-Born-Infeld theories
Kazuharu Bamba, Nobuyoshi Ohta, Shinji Tsujikawa
Black hole perturbations in vector-tensor theories: The odd-mode analysis
Ryotaro Kase, Masato Minamitsuji, Shinji Tsujikawa +1
Revisiting chameleon gravity - thin-shells and no-shells with appropriate boundary conditions
Takashi Tamaki, Shinji Tsujikawa
New scaling solutions in cubic Horndeski theories
Ines S. Albuquerque, Noemi Frusciante, Nelson J. Nunes +1
Observational tests of inflation with a field derivative coupling to gravity
Shinji Tsujikawa
Dynamics of assisted quintessence
Soo A Kim, Andrew R Liddle, Shinji Tsujikawa
Strong Planck constraints on braneworld and non-commutative inflation
Gianluca Calcagni, Sachiko Kuroyanagi, Junko Ohashi +1
Odd-parity stability of hairy black holes in $U(1)$ gauge-invariant scalar-vector-tensor theories
Lavinia Heisenberg, Ryotaro Kase, Shinji Tsujikawa
Anisotropic Non-Gaussianity from a Two-Form Field
Junko Ohashi, Jiro Soda, Shinji Tsujikawa
Assisted dark energy
Junko Ohashi, Shinji Tsujikawa
On the Construction of Nonsingular Pre-Big-Bang and Ekpyrotic Cosmologies and the Resulting Density Perturbations
Shinji Tsujikawa, Robert Brandenberger, Fabio Finelli
Construction of nonsingular cosmological solutions in string theories
Shinji Tsujikawa
Relativistic stars in vector-tensor theories
Ryotaro Kase, Masato Minamitsuji, Shinji Tsujikawa
Inflationary gravitational waves in the effective field theory of modified gravity
Antonio De Felice, Shinji Tsujikawa
Reconstruction of general scalar-field dark energy models
Shinji Tsujikawa
Prospects of inflation in delicate D-brane cosmology
Sudhakar Panda, M. Sami, Shinji Tsujikawa