成子 篤

最終更新日時: 2019/06/24 16:26:56

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氏名(漢字/フリガナ/アルファベット表記)
成子 篤/ナルコ アツシ/Naruko, Atsushi
所属部署・職名(部局/所属/講座等/職名)
基礎物理学研究所/極限構造研究部門/特定助教
取得学位
学位名(日本語) 学位名(英語) 大学(日本語) 大学(英語) 取得区分
修士(理学) Science 京都大学 Kyoto University
博士(理学) Science 京都大学 Kyoto University
researchmap URL
https://researchmap.jp/7000020971
研究テーマ
(日本語)
宇宙論、重力理論
(英語)
Cosmology and Gravitation
研究概要
(日本語)
A.Einstein による一般相対性理論の提唱から約100年が経ち、2016年2月についに、一般相対論がその存在を予想した重力波が初めて観測されたことが報告されました。重力波は「時空のさざ波」と比喩され、我々が住む時空自体を動力学の対象として扱った帰結の1つです。重力波が観測された事実は、そのような取り扱いの正当性を強く支持するものであり、時空の動力学を扱う重力理論の研究は、今後ますます発展していくものと期待されます。 他方、宇宙マイクロ波背景輻射や超新星爆発などの観測によると、現在の宇宙の膨張速度は増大している、つまり宇宙は加速度的に膨張していることが強く示唆されています。重力が常に引力的に働くとすると、仮に宇宙が膨張期にあっても、時空が引き合うためにその膨張速度は減少する。つまり、宇宙は常に減速的に膨張することになります。それゆえ、宇宙が加速膨張しているという事実は、少なくとも宇宙膨張が関係するような長いスケールにおいて、重力が斥力的に振る舞う、つまり重力の法則が Einstein のそれから修正されていることを暗示しているのかもしれません。 我々の宇宙を支配する重力法則がどのようになっているのか、様々な観測を用いて重力理論を検証することを目標に、いわゆる線形摂動理論の範疇を超えて、非線形・非摂動的な解析手法を用いることにより、これまで未知の理論予言を明らかにする研究に取り組みます。
(英語)
After almost 100 years passed from the foundation of the general relativity by A.Einstein, it was finally reported in February 2016 that we have detected gravitational waves whose existences were first predicted by the general relativity. Gravitational waves are a sort of ripples in spacetime which is one of physical consequences in the general relativity where spacetime itself is dynamical. The observation of gravitational waves strongly support the existence of dynamics of spacetime and then the theory of gravity and related topics must be central focuses in the coming decades. On the other hand, many cosmological observations such as cosmic microwave background and type-Ia supernova indicate that the universe is acceleratedly expanding. However suppose that gravitational force is always attractive, the expansion speed of the universe will slow down since the gravitational force will attract the spacetime. Therefore the fact that the universe has experienced a stage of accelerated expansion would imply that gravitational force could be repulsive at least on cosmologically large scales, which in turn might be an indication that the theory of gravity is modified from that of the general relativity. To reveal the fundamental law of gravity in our universe and test it by means of various observations, we are developing non-linear and/or non-perturbative analytical methods beyond linear perturbation theory trying to find unknown theoretical predictions from theories of gravity by invoking those methods.
研究分野(キーワード)
キーワード(日本語) キーワード(英語)
素粒子、原子核、宇宙線および宇宙物理に関連する理論
宇宙論 Cosmology
重力理論 Gravitation
宇宙のインフレーション Cosmic Inflation
暗黒エネルギー Dark Energy
宇宙マイクロ波背景輻射 Cosmic Microwave Background Radiation
重力波 Gravitational Wave
論文
著者 著者(日本語) 著者(英語) タイトル タイトル(日本語) タイトル(英語) 書誌情報等 書誌情報等(日本語) 書誌情報等(英語) 出版年月 査読の有無 記述言語 掲載種別 公開
Atsushi Naruko, Rampei Kimura, Daisuke Yamauchi Atsushi Naruko, Rampei Kimura, Daisuke Yamauchi Atsushi Naruko, Rampei Kimura, Daisuke Yamauchi On Lorentz-invariant spin-2 theories On Lorentz-invariant spin-2 theories On Lorentz-invariant spin-2 theories Physical Review D Physical Review D Physical Review D 2018/12 研究論文(学術雑誌) 公開
Ryotaro Kase, Rampei Kimura, Atsushi Naruko, Daisuke Yoshida Ryotaro Kase, Rampei Kimura, Atsushi Naruko, Daisuke Yoshida Ryotaro Kase, Rampei Kimura, Atsushi Naruko, Daisuke Yoshida Stable cosmological solutions in degenerate theory of gravity Stable cosmological solutions in degenerate theory of gravity Stable cosmological solutions in degenerate theory of gravity Physics Letters B, 783, 320-325 Physics Letters B, 783, 320-325 Physics Letters B, 783, 320-325 2018/08 英語 研究論文(学術雑誌) 公開
Rampei Kimura, Atsushi Naruko, Daisuke Yoshida Rampei Kimura, Atsushi Naruko, Daisuke Yoshida Rampei Kimura, Atsushi Naruko, Daisuke Yoshida Extended vector-tensor theories Extended vector-tensor theories Extended vector-tensor theories Journal of Cosmology and Astroparticle Physics, 2017 Journal of Cosmology and Astroparticle Physics, 2017 Journal of Cosmology and Astroparticle Physics, 2017 2017/01/02 英語 研究論文(学術雑誌) 公開
Atsushi Naruko, Daisuke Yoshida, Shinji Mukohyama Atsushi Naruko, Daisuke Yoshida, Shinji Mukohyama Atsushi Naruko, Daisuke Yoshida, Shinji Mukohyama Gravitational scalar–tensor theory Gravitational scalar–tensor theory Gravitational scalar–tensor theory Classical and Quantum Gravity, 33 Classical and Quantum Gravity, 33 Classical and Quantum Gravity, 33 2016/04/12 英語 研究論文(学術雑誌) 公開
Guillem Domènech, Atsushi Naruko, Misao Sasaki Guillem Domènech, Atsushi Naruko, Misao Sasaki Guillem Domènech, Atsushi Naruko, Misao Sasaki Cosmological disformal invariance Cosmological disformal invariance Cosmological disformal invariance Journal of Cosmology and Astroparticle Physics, 2015 Journal of Cosmology and Astroparticle Physics, 2015 Journal of Cosmology and Astroparticle Physics, 2015 2015/10/30 英語 研究論文(学術雑誌) 公開
Guillem Domènech, Shinji Mukohyama, Ryo Namba, Atsushi Naruko, Rio Saitou, Yota Watanabe Guillem Domènech, Shinji Mukohyama, Ryo Namba, Atsushi Naruko, Rio Saitou, Yota Watanabe Guillem Domènech, Shinji Mukohyama, Ryo Namba, Atsushi Naruko, Rio Saitou, Yota Watanabe Derivative-dependent metric transformation and physical degrees of freedom Derivative-dependent metric transformation and physical degrees of freedom Derivative-dependent metric transformation and physical degrees of freedom Physical Review D, 92 Physical Review D, 92 Physical Review D, 92 2015/10 英語 研究論文(学術雑誌) 公開
Yuki Watanabe, Atsushi Naruko, Misao Sasaki Yuki Watanabe, Atsushi Naruko, Misao Sasaki Yuki Watanabe, Atsushi Naruko, Misao Sasaki Multi-disformal invariance of non-linear primordial perturbations Multi-disformal invariance of non-linear primordial perturbations Multi-disformal invariance of non-linear primordial perturbations Europhysics Letters, 111 Europhysics Letters, 111 Europhysics Letters, 111 2015/08/07 英語 研究論文(学術雑誌) 公開
Atsushi Naruko, Atsuhisa Ota, Masahide Yamaguchi Atsushi Naruko, Atsuhisa Ota, Masahide Yamaguchi Atsushi Naruko, Atsuhisa Ota, Masahide Yamaguchi Probing small-scale non-Gaussianity from anisotropies in acoustic reheating Probing small-scale non-Gaussianity from anisotropies in acoustic reheating Probing small-scale non-Gaussianity from anisotropies in acoustic reheating Journal of Cosmology and Astroparticle Physics, 2015 Journal of Cosmology and Astroparticle Physics, 2015 Journal of Cosmology and Astroparticle Physics, 2015 2015/05/26 英語 研究論文(学術雑誌) 公開
Atsushi Naruko, Eiichiro Komatsu, Masahide Yamaguchi Atsushi Naruko, Eiichiro Komatsu, Masahide Yamaguchi Atsushi Naruko, Eiichiro Komatsu, Masahide Yamaguchi Anisotropic inflation reexamined: upper bound on broken rotational invariance during inflation Anisotropic inflation reexamined: upper bound on broken rotational invariance during inflation Anisotropic inflation reexamined: upper bound on broken rotational invariance during inflation Journal of Cosmology and Astroparticle Physics, 2015 Journal of Cosmology and Astroparticle Physics, 2015 Journal of Cosmology and Astroparticle Physics, 2015 2015/04/27 英語 研究論文(学術雑誌) 公開
Ryo Saito, Atsushi Naruko, Takashi Hiramatsu, Misao Sasaki Ryo Saito, Atsushi Naruko, Takashi Hiramatsu, Misao Sasaki Ryo Saito, Atsushi Naruko, Takashi Hiramatsu, Misao Sasaki Geodesic curve-of-sight formulae for the cosmic microwave background: a unified treatment of redshift, time delay, and lensing Geodesic curve-of-sight formulae for the cosmic microwave background: a unified treatment of redshift, time delay, and lensing Geodesic curve-of-sight formulae for the cosmic microwave background: a unified treatment of redshift, time delay, and lensing Journal of Cosmology and Astroparticle Physics, 2014 Journal of Cosmology and Astroparticle Physics, 2014 Journal of Cosmology and Astroparticle Physics, 2014 2014/10/21 英語 研究論文(学術雑誌) 公開
David Langlois, Shinji Mukohyama, Ryo Namba, Atsushi Naruko David Langlois, Shinji Mukohyama, Ryo Namba, Atsushi Naruko David Langlois, Shinji Mukohyama, Ryo Namba, Atsushi Naruko Cosmology in rotation-invariant massive gravity with non-trivial fiducial metric Cosmology in rotation-invariant massive gravity with non-trivial fiducial metric Cosmology in rotation-invariant massive gravity with non-trivial fiducial metric Classical and Quantum Gravity, 31 Classical and Quantum Gravity, 31 Classical and Quantum Gravity, 31 2014/08/07 英語 研究論文(学術雑誌) 公開
David Langlois, Atsushi Naruko David Langlois, Atsushi Naruko David Langlois, Atsushi Naruko Bouncing cosmologies in massive gravity on de Sitter Bouncing cosmologies in massive gravity on de Sitter Bouncing cosmologies in massive gravity on de Sitter Classical and Quantum Gravity, 30 Classical and Quantum Gravity, 30 Classical and Quantum Gravity, 30 2013/10/01 英語 研究論文(学術雑誌) 公開
Atsushi Naruko, Cyril Pitrou, Kazuya Koyama, Misao Sasaki Atsushi Naruko, Cyril Pitrou, Kazuya Koyama, Misao Sasaki Atsushi Naruko, Cyril Pitrou, Kazuya Koyama, Misao Sasaki Second-order Boltzmann equation: gauge dependence and gauge invariance Second-order Boltzmann equation: gauge dependence and gauge invariance Second-order Boltzmann equation: gauge dependence and gauge invariance Classical and Quantum Gravity, 30 Classical and Quantum Gravity, 30 Classical and Quantum Gravity, 30 2013/07/19 英語 研究論文(学術雑誌) 公開
Atsushi Naruko, Yu-ichi Takamizu, Misao Sasaki Atsushi Naruko, Yu-ichi Takamizu, Misao Sasaki Atsushi Naruko, Yu-ichi Takamizu, Misao Sasaki Beyond δN formalism Beyond δN formalism Beyond δN formalism Progress of Theoretical and Experimental Physics, 2013 Progress of Theoretical and Experimental Physics, 2013 Progress of Theoretical and Experimental Physics, 2013 2013/04/01 英語 研究論文(学術雑誌) 公開
David Langlois, Atsushi Naruko David Langlois, Atsushi Naruko David Langlois, Atsushi Naruko Cosmological solutions of massive gravity on de Sitter Cosmological solutions of massive gravity on de Sitter Cosmological solutions of massive gravity on de Sitter Classical and Quantum Gravity, 29 Classical and Quantum Gravity, 29 Classical and Quantum Gravity, 29 2012/08/31 英語 研究論文(学術雑誌) 公開
Atsushi Naruko Atsushi Naruko Atsushi Naruko A general proof of the equivalence between the δN and covariant formalisms A general proof of the equivalence between the δN and covariant formalisms A general proof of the equivalence between the δN and covariant formalisms Europhysics Letters, 98 Europhysics Letters, 98 Europhysics Letters, 98 2012/06/27 英語 研究論文(学術雑誌) 公開
Daisuke Yamauchi, Andrei Linde, Atsushi Naruko, Misao Sasaki, Takahiro Tanaka Daisuke Yamauchi, Andrei Linde, Atsushi Naruko, Misao Sasaki, Takahiro Tanaka Daisuke Yamauchi, Andrei Linde, Atsushi Naruko, Misao Sasaki, Takahiro Tanaka Open inflation in the landscape Open inflation in the landscape Open inflation in the landscape Physical Review D, 84 Physical Review D, 84 Physical Review D, 84 2011/08 英語 研究論文(学術雑誌) 公開
Atsushi Naruko, Misao Sasaki Atsushi Naruko, Misao Sasaki Atsushi Naruko, Misao Sasaki Conservation of the nonlinear curvature perturbation in generic single-field inflation Conservation of the nonlinear curvature perturbation in generic single-field inflation Conservation of the nonlinear curvature perturbation in generic single-field inflation Classical and Quantum Gravity, 28 Classical and Quantum Gravity, 28 Classical and Quantum Gravity, 28 2011/03 英語 研究論文(学術雑誌) 公開
Daisuke Yamauchi, Yuuiti Sendouda, Chul-Moon Yoo, Keitaro Takahashi, Atsushi Naruko, Misao Sasaki Daisuke Yamauchi, Yuuiti Sendouda, Chul-Moon Yoo, Keitaro Takahashi, Atsushi Naruko, Misao Sasaki Daisuke Yamauchi, Yuuiti Sendouda, Chul-Moon Yoo, Keitaro Takahashi, Atsushi Naruko, Misao Sasaki Skewness in CMB temperature fluctuations from curved cosmic (super-)strings Skewness in CMB temperature fluctuations from curved cosmic (super-)strings Skewness in CMB temperature fluctuations from curved cosmic (super-)strings Journal of Cosmology and Astroparticle Physics, 2010 Journal of Cosmology and Astroparticle Physics, 2010 Journal of Cosmology and Astroparticle Physics, 2010 2010/05/25 英語 研究論文(学術雑誌) 公開
Keitaro Takahashi, Atsushi Naruko, Yuuiti Sendouda, Daisuke Yamauchi, Chul-Moon Yoo, Misao Sasaki Keitaro Takahashi, Atsushi Naruko, Yuuiti Sendouda, Daisuke Yamauchi, Chul-Moon Yoo, Misao Sasaki Keitaro Takahashi, Atsushi Naruko, Yuuiti Sendouda, Daisuke Yamauchi, Chul-Moon Yoo, Misao Sasaki Non-Gaussianity in Cosmic Microwave Background Temperature Fluctuations from Cosmic (Super-)Strings Non-Gaussianity in Cosmic Microwave Background Temperature Fluctuations from Cosmic (Super-)Strings Non-Gaussianity in Cosmic Microwave Background Temperature Fluctuations from Cosmic (Super-)Strings Journal of Cosmology and Astroparticle Physics, 2009 Journal of Cosmology and Astroparticle Physics, 2009 Journal of Cosmology and Astroparticle Physics, 2009 2009/10/05 英語 研究論文(学術雑誌) 公開
Atsushi Naruko, Misao Sasaki Atsushi Naruko, Misao Sasaki Atsushi Naruko, Misao Sasaki Large non-Gaussianity from multi-brid inflation Large non-Gaussianity from multi-brid inflation Large non-Gaussianity from multi-brid inflation Progress of Theoretical Physics, 121, 1, 193-210 Progress of Theoretical Physics, 121, 1, 193-210 Progress of Theoretical Physics, 121, 1, 193-210 2009/01/01 英語 研究論文(学術雑誌) 公開

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タイトル言語:
Misc
著者 著者(日本語) 著者(英語) タイトル タイトル(日本語) タイトル(英語) 書誌情報等 書誌情報等(日本語) 書誌情報等(英語) 出版年月 査読の有無 記述言語 掲載種別 公開
佐々木 節, 成子 篤 佐々木 節, 成子 篤 佐々木 節, 成子 篤 特集:「摂動論を考える」 特集:「摂動論を考える」 特集:「摂動論を考える」 数理科学 数理科学 数理科学 2016/09 日本語 総説・解説(商業誌、新聞、ウェブメディア) 公開
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講演・口頭発表等
タイトル タイトル(日本語) タイトル(英語) 会議名 会議名(日本語) 会議名(英語) 主催者 主催者(日本語) 主催者(英語) 開催年月日 記述言語 会議種別 公開
On Lorentz-invariant massive spin-2 theories[招待あり] On Lorentz-invariant massive spin-2 theories [招待あり] On Lorentz-invariant massive spin-2 theories [招待あり] Winter Mini Workshop on Gravity and Cosmology Winter Mini Workshop on Gravity and Cosmology Winter Mini Workshop on Gravity and Cosmology 2019/01 英語 口頭発表(招待・特別) 公開
縮退理論と計量の変換と宇宙論 縮退理論と計量の変換と宇宙論 新学術領域「加速宇宙」合同コアミーティング 新学術領域「加速宇宙」合同コアミーティング 2018/12 日本語 口頭発表(一般) 公開
ベクトル場とベクトル型ゆらぎと宇宙論[招待あり] ベクトル場とベクトル型ゆらぎと宇宙論 [招待あり] 第七回観測的宇宙論ワークショップ 第七回観測的宇宙論ワークショップ 2018/11 日本語 口頭発表(招待・特別) 公開
New massive spin-2 theories New massive spin-2 theories New massive spin-2 theories Essential next steps for gravity and cosmology Essential next steps for gravity and cosmology Essential next steps for gravity and cosmology 2018/06 英語 口頭発表(一般) 公開
Degenerate theory and its applications to cosmology[招待あり] Degenerate theory and its applications to cosmology [招待あり] Degenerate theory and its applications to cosmology [招待あり] JCAP-CGRRA 2018 JCAP-CGRRA 2018 JCAP-CGRRA 2018 2018/06 英語 口頭発表(招待・特別) 公開
Stable cosmological solutions in extended vector-tensor theory Stable cosmological solutions in extended vector-tensor theory 重力・宇宙論研究会 2018 重力・宇宙論研究会 2018 2018/03 日本語 口頭発表(一般) 公開
最近の観測結果を考慮した暗黒エネルギーモデル 最近の観測結果を考慮した暗黒エネルギーモデル 日本物理学会第 73 回年次大会 日本物理学会第 73 回年次大会 2018/03 日本語 口頭発表(一般) 公開
Extended vector-tensor theory Extended vector-tensor theory Extended vector-tensor theory 34th Pacific Coast Gravity Meeting 34th Pacific Coast Gravity Meeting 34th Pacific Coast Gravity Meeting 2018/03 英語 口頭発表(一般) 公開
Stable cosmological solutions in extended vector-tensor theory Stable cosmological solutions in extended vector-tensor theory Stable cosmological solutions in extended vector-tensor theory Kasoku symposium 2018 Kasoku symposium 2018 Kasoku symposium 2018 2018/02 英語 口頭発表(一般) 公開
Long-wavelength perturbations around homogeneous but anisotropic spacetime Long-wavelength perturbations around homogeneous but anisotropic spacetime Long-wavelength perturbations around homogeneous but anisotropic spacetime YKIS2018a Symposium YKIS2018a Symposium YKIS2018a Symposium 2018/02 英語 口頭発表(一般) 公開
GW 170817 以降の重力理論の現状 GW 170817 以降の重力理論の現状 日本SKAパルサー・突発天体研究会 日本SKAパルサー・突発天体研究会 2018/01 日本語 口頭発表(一般) 公開
vGW = 1 の修正重力理論 vGW = 1 の修正重力理論 新学術「重力波物理学・天文学:創世記」A班合宿研究会 新学術「重力波物理学・天文学:創世記」A班合宿研究会 2017/12 日本語 口頭発表(一般) 公開
Dark energy model after detection of gravitational waves Dark energy model after detection of gravitational waves Dark energy model after detection of gravitational waves Issues on Large Scale Perturbations from Inflation Issues on Large Scale Perturbations from Inflation Issues on Large Scale Perturbations from Inflation 2017/10 口頭発表(招待・特別) 公開
宇宙論的ニ次摂動における渦度 宇宙論的ニ次摂動における渦度 日本物理学会 2017 年秋季大会 日本物理学会 2017 年秋季大会 2017/09 日本語 口頭発表(一般) 公開
修正重力関連 修正重力関連 新学術領域「加速宇宙」合同コアミーティング 新学術領域「加速宇宙」合同コアミーティング 2017/09 日本語 口頭発表(一般) 公開
Extended Vector-Tensor theories Extended Vector-Tensor theories Extended Vector-Tensor theories COSMO 17 COSMO 17 COSMO 17 2017/08 口頭発表(一般) 公開
Dark Energy & Modified Gravity Dark Energy & Modified Gravity Dark Energy & Modified Gravity Rencontres du Vietnam: Cosmology 2017 Rencontres du Vietnam: Cosmology 2017 Rencontres du Vietnam: Cosmology 2017 2017/07 口頭発表(招待・特別) 公開
Extended Vector-Tensor theories Extended Vector-Tensor theories Extended Vector-Tensor theories ICGAC-XIII and IK15 ICGAC-XIII and IK15 ICGAC-XIII and IK15 2017/07 口頭発表(一般) 公開
Extended Vector-Tensor theories Extended Vector-Tensor theories Extended Vector-Tensor theories Workshop on gravity and cosmology Workshop on gravity and cosmology Workshop on gravity and cosmology 2017/03 口頭発表(招待・特別) 公開
Extended Vector-Tensor theories Extended Vector-Tensor theories Extended Vector-Tensor theories 新学術領域「加速宇宙」シンポジウム 新学術領域「加速宇宙」シンポジウム 新学術領域「加速宇宙」シンポジウム 2017/03 口頭発表(一般) 公開
一般的なスカラー・テンソル理論とその宇宙論への応用 一般的なスカラー・テンソル理論とその宇宙論への応用 日本物理学会第 72 回年次大会 日本物理学会第 72 回年次大会 2017/03 日本語 口頭発表(一般) 公開
Extended Vector-Tensor theories Extended Vector-Tensor theories Extended Vector-Tensor theories New perspectives on cosmology New perspectives on cosmology New perspectives on cosmology 2017/02 口頭発表(招待・特別) 公開
Extended Vector-Tensor theories Extended Vector-Tensor theories Extended Vector-Tensor theories JGRG 26 JGRG 26 JGRG 26 2016/10 口頭発表(一般) 公開
Some thoughts on Horndeski's hair Some thoughts on Horndeski's hair Some thoughts on Horndeski's hair Workshop on Particle Physics, Cosmology, and Gravitation Workshop on Particle Physics, Cosmology, and Gravitation Workshop on Particle Physics, Cosmology, and Gravitation 2016/09 口頭発表(一般) 公開
Gravitational scalar-tensor theory Gravitational scalar-tensor theory Gravitational scalar-tensor theory GR 21 GR 21 GR 21 2016/07 口頭発表(一般) 公開
Geodesic curve-of-sight formulae for the cosmic microwave background Geodesic curve-of-sight formulae for the cosmic microwave background Geodesic curve-of-sight formulae for the cosmic microwave background New perspective on theory and observation of large-scale structure New perspective on theory and observation of large-scale structure New perspective on theory and observation of large-scale structure 2016/06 口頭発表(招待・特別) 公開
On Horndeski’s hair On Horndeski’s hair On Horndeski’s hair Relativistic cosmology Relativistic cosmology Relativistic cosmology 2016/05 口頭発表(招待・特別) 公開
Gravitational scalar-tensor theory Gravitational scalar-tensor theory Gravitational scalar-tensor theory New perspectives on cosmology New perspectives on cosmology New perspectives on cosmology 2016/01 口頭発表(招待・特別) 公開
Gravitational scalar-tensor theory Gravitational scalar-tensor theory Gravitational scalar-tensor theory JGRG 25 JGRG 25 JGRG 25 2015/12 口頭発表(一般) 公開
Gravitational scalar-tensor theory Gravitational scalar-tensor theory Gravitational scalar-tensor theory 2nd mini-workshop on gravity and cosmology 2nd mini-workshop on gravity and cosmology 2nd mini-workshop on gravity and cosmology 2015/10 口頭発表(招待・特別) 公開
Towards testing gravity theory with a pulsar-BH system Towards testing gravity theory with a pulsar-BH system Towards testing gravity theory with a pulsar-BH system パルサー・突発天体に関するミニワーク ショップ, 神戸市教育会館 パルサー・突発天体に関するミニワーク ショップ, 神戸市教育会館 パルサー・突発天体に関するミニワーク ショップ, 神戸市教育会館 2015/09 口頭発表(一般) 公開
CMB beyond linear order CMB beyond linear order CMB beyond linear order Miniworkshop on cosmology Miniworkshop on cosmology Miniworkshop on cosmology 2014/12 口頭発表(一般) 公開
Cosmology in rotation-invariant massive gravity with non-trivial fiducial metric Cosmology in rotation-invariant massive gravity with non-trivial fiducial metric Cosmology in rotation-invariant massive gravity with non-trivial fiducial metric JGRG 24 JGRG 24 JGRG 24 2014/11 口頭発表(一般) 公開
Geodesic curve-of-sight formulae for the cosmic microwave background Geodesic curve-of-sight formulae for the cosmic microwave background Geodesic curve-of-sight formulae for the cosmic microwave background Relativistic Cosmology Relativistic Cosmology Relativistic Cosmology 2014/09 口頭発表(一般) 公開
Primordial perturbations from anisotropic inflation revisited Primordial perturbations from anisotropic inflation revisited Primordial perturbations from anisotropic inflation revisited Mini-Workshop on Gravitation and Cosmology Mini-Workshop on Gravitation and Cosmology Mini-Workshop on Gravitation and Cosmology 2014/02 口頭発表(一般) 公開
Gauge (observer) dependence of CMB temperature anisotropies at second order Gauge (observer) dependence of CMB temperature anisotropies at second order Gauge (observer) dependence of CMB temperature anisotropies at second order Present and future of 2nd order CMB Present and future of 2nd order CMB Present and future of 2nd order CMB 2013/11 口頭発表(招待・特別) 公開
New conformal symmetry for gauge field New conformal symmetry for gauge field New conformal symmetry for gauge field APC mini-seminars APC mini-seminars APC mini-seminars 2013/11 口頭発表(招待・特別) 公開
2nd order Boltzmann equation - gauge dependence and invariance 2nd order Boltzmann equation - gauge dependence and invariance 2nd order Boltzmann equation - gauge dependence and invariance Gravity and Cosmology 2012 Gravity and Cosmology 2012 Gravity and Cosmology 2012 2012/12 口頭発表(一般) 公開
Second order Boltzmann equation : gauge dependence and gauge invariance Second order Boltzmann equation : gauge dependence and gauge invariance Second order Boltzmann equation : gauge dependence and gauge invariance Nishinomiya Yukawa Symposium : New Waves in Gravity and Cosmology Nishinomiya Yukawa Symposium : New Waves in Gravity and Cosmology Nishinomiya Yukawa Symposium : New Waves in Gravity and Cosmology 2012/12 口頭発表(一般) 公開
Beyond δN formalism Beyond δN formalism Beyond δN formalism Critical tests of Inflation using Non-Gaussianity Critical tests of Inflation using Non-Gaussianity Critical tests of Inflation using Non-Gaussianity 2012/11 口頭発表(一般) 公開
Beyond δN formalism Beyond δN formalism Beyond δN formalism Japan in Paris Japan in Paris Japan in Paris 2012/10 口頭発表(一般) 公開
On the equivalence between the δN and covariant formalisms On the equivalence between the δN and covariant formalisms On the equivalence between the δN and covariant formalisms Asia Pacific School/Workshop on Cosmology and Gravitation Asia Pacific School/Workshop on Cosmology and Gravitation Asia Pacific School/Workshop on Cosmology and Gravitation 2012/03 口頭発表(一般) 公開
Beyond δN formalism Beyond δN formalism Beyond δN formalism JGRG 21 JGRG 21 JGRG 21 2011/09 口頭発表(一般) 公開
Beyond δN formalism Beyond δN formalism Beyond δN formalism Informal Workshop on Theoretical Cosmology Informal Workshop on Theoretical Cosmology Informal Workshop on Theoretical Cosmology 2011/09 口頭発表(一般) 公開
Conservation of the non-linear curvature perturbation in generic single-field inflation Conservation of the non-linear curvature perturbation in generic single-field inflation Conservation of the non-linear curvature perturbation in generic single-field inflation COSMO 11 COSMO 11 COSMO 11 2011/08 口頭発表(一般) 公開
Conservation of the non-linear curvature perturbation in generic single-field inflation Conservation of the non-linear curvature perturbation in generic single-field inflation Conservation of the non-linear curvature perturbation in generic single-field inflation Cosmological Perturbation and Cosmic Microwave Background Cosmological Perturbation and Cosmic Microwave Background Cosmological Perturbation and Cosmic Microwave Background 2011/03 口頭発表(一般) 公開
Gauge invariance of Boltzmann equation with polarization Gauge invariance of Boltzmann equation with polarization Gauge invariance of Boltzmann equation with polarization COSMO/CosPA 2010 COSMO/CosPA 2010 COSMO/CosPA 2010 2010/09 口頭発表(一般) 公開
Gauge invariance of Boltzmann equation with polarization Gauge invariance of Boltzmann equation with polarization Gauge invariance of Boltzmann equation with polarization JGRG 20 JGRG 20 JGRG 20 2010/09 口頭発表(一般) 公開
Gauge invariance of Boltzmann equation at second order Gauge invariance of Boltzmann equation at second order Gauge invariance of Boltzmann equation at second order Gravity and Cosmology 2010 Gravity and Cosmology 2010 Gravity and Cosmology 2010 2010/06 口頭発表(一般) 公開
Gauge invariance of Boltzmann equation at second order Gauge invariance of Boltzmann equation at second order Gauge invariance of Boltzmann equation at second order YKIS symposium 2010 YKIS symposium 2010 YKIS symposium 2010 2010/06 口頭発表(一般) 公開
Non-Gaussianity in the CMB temperature fluctuations from Cosmic Strings Non-Gaussianity in the CMB temperature fluctuations from Cosmic Strings Non-Gaussianity in the CMB temperature fluctuations from Cosmic Strings JGRG 19 JGRG 19 JGRG 19 2009/12 口頭発表(一般) 公開
Non-Gaussianity in the CMB temperature fluctuations from Cosmic Strings Non-Gaussianity in the CMB temperature fluctuations from Cosmic Strings Non-Gaussianity in the CMB temperature fluctuations from Cosmic Strings Challenges in Theoretical Cosmology Challenges in Theoretical Cosmology Challenges in Theoretical Cosmology 2009/09 口頭発表(一般) 公開
Non-Gaussianity in the CMB temperature fluctuations from Cosmic Strings Non-Gaussianity in the CMB temperature fluctuations from Cosmic Strings Non-Gaussianity in the CMB temperature fluctuations from Cosmic Strings COSMO 9 COSMO 9 COSMO 9 2009/09 口頭発表(一般) 公開
Large non-Gaussianity from multi-brid inflation Large non-Gaussianity from multi-brid inflation Large non-Gaussianity from multi-brid inflation JGRG 18 JGRG 18 JGRG 18 2008/11 口頭発表(一般) 公開
Large non-Gaussianity from multi-brid inflation Large non-Gaussianity from multi-brid inflation Large non-Gaussianity from multi-brid inflation Cosmology and Particle Astrophysics Cosmology and Particle Astrophysics Cosmology and Particle Astrophysics 2008/10 口頭発表(一般) 公開

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成子 篤, 佐々木 節 成子 篤, 佐々木 節 Ali Akbar Abolhasani, Hassan Firouzjahi, Atsushi Naruko, Misao Sasaki Delta N Formalism in Cosmological Perturbation Theory Delta N Formalism in Cosmological Perturbation Theory Delta N Formalism in Cosmological Perturbation Theory World Scientific World Scientific World Scientific 2019/01 英語 共著 公開
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Highlight Articles 2015 Highlight Articles 2015 Europhysics Letters Europhysics Letters 2016/01/
Editor's Choice Articles 2015 Editor's Choice Articles 2015 Europhysics Letters 2015/08/__
第30回井上研究奨励賞 井上科学振興財団 2014/02/__
CQG Highlights of 2012 - 2013 CQG Highlights of 2012 - 2013 Classical and Quantum Gravity Classical and Quantum Gravity 2013/11/__
CQG Highlights of 2010 - 2011 CQG Highlights of 2010 - 2011 Classical and Quantum Gravity Classical and Quantum Gravity 2011/10/__
IOP select IOP select IOP publishing IOP publishing 2011/05/__