大熊 信之

Last Update: 2021/06/28 13:03:48

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Name(Kanji/Kana/Abecedarium Latinum)
大熊 信之/オオクマ ノブユキ/Okuma, Nobuyuki
Primary Affiliation(Org1/Job title)
Yukawa Institute for Theoretical Physics (YITP)/Program-Specific Assistant Professor
Academic Degree
Field(Japanese) Field(English) University(Japanese) University(English) Method
修士(理学) 東京大学
博士(理学) 東京大学
Personal Profile
(Japanese)
理論物理学の研究をしている。教育に関しては、学生との共同研究やゼミナール・セミナーを通して、実践的に研究能力を身につけさせることを目指している。
Language of Instruction
Language(japanese) Language(english) Code
日本語 Japanese jpn
researchmap URL
https://researchmap.jp/nobuyukiokuma
Published Papers
Author Author(Japanese) Author(English) Title Title(Japanese) Title(English) Bibliography Bibliography(Japanese) Bibliography(English) Publication date Refereed paper Language Publishing type Disclose
Nobuyuki Okuma, Masatoshi Sato Nobuyuki Okuma, Masatoshi Sato Nobuyuki Okuma, Masatoshi Sato Quantum anomaly, non-Hermitian skin effects, and entanglement entropy in open systems Quantum anomaly, non-Hermitian skin effects, and entanglement entropy in open systems Quantum anomaly, non-Hermitian skin effects, and entanglement entropy in open systems Physical Review B, 103, 8 Physical Review B, 103, 8 Physical Review B, 103, 8 2021/02/19 Refereed Research paper(scientific journal) Disclose to all
Nobuyuki Okuma, Masatoshi Sato Nobuyuki Okuma, Masatoshi Sato Nobuyuki Okuma, Masatoshi Sato Hermitian zero modes protected by nonnormality: Application of pseudospectra Hermitian zero modes protected by nonnormality: Application of pseudospectra Hermitian zero modes protected by nonnormality: Application of pseudospectra Physical Review B, 102, 1 Physical Review B, 102, 1 Physical Review B, 102, 1 2020/07/06 Refereed Research paper(scientific journal) Disclose to all
Kohei Kawabata, Nobuyuki Okuma, Masatoshi Sato Kohei Kawabata, Nobuyuki Okuma, Masatoshi Sato Non-Bloch band theory of non-Hermitian Hamiltonians in the symplectic class Non-Bloch band theory of non-Hermitian Hamiltonians in the symplectic class Non-Bloch band theory of non-Hermitian Hamiltonians in the symplectic class Physical Review B, 101, 19 , 101, 19 Physical Review B, 101, 19 2020/05/29 Research paper(scientific journal) Disclose to all
Nobuyuki Okuma, Kohei Kawabata, Ken Shiozaki, Masatoshi Sato Nobuyuki Okuma, Kohei Kawabata, Ken Shiozaki, Masatoshi Sato Nobuyuki Okuma, Kohei Kawabata, Ken Shiozaki, Masatoshi Sato Topological Origin of Non-Hermitian Skin Effects Topological Origin of Non-Hermitian Skin Effects Topological Origin of Non-Hermitian Skin Effects PHYSICAL REVIEW LETTERS, 124, 8, 086801 PHYSICAL REVIEW LETTERS, 124, 8, 086801 PHYSICAL REVIEW LETTERS, 124, 8, 086801 2020/02 Refereed English Research paper(scientific journal) Disclose to all
Nobuyuki Okuma, Masatoshi Sato Nobuyuki Okuma, Masatoshi Sato Topological Phase Transition driven by Infinitesimal Instability: Majorana Fermions in Non-Hermitian Spintronics Topological Phase Transition driven by Infinitesimal Instability: Majorana Fermions in Non-Hermitian Spintronics Topological Phase Transition driven by Infinitesimal Instability: Majorana Fermions in Non-Hermitian Spintronics Physical Review Letters, 123, 097701 Physical Review Letters, 123, 097701 Physical Review Letters, 123, 097701 2019/08 Refereed English Research paper(scientific journal) Disclose to all
Nobuyuki Okuma Nobuyuki Okuma Nonreciprocal superposition state in antiferromagnetic optospintronics Nonreciprocal superposition state in antiferromagnetic optospintronics Nonreciprocal superposition state in antiferromagnetic optospintronics Physical Review B, 99, 094401 Physical Review B, 99, 094401 , 99, 094401 2019/03 Refereed English Research paper(scientific journal) Disclose to all
Nobuyuki Okuma, Masatoshi Sato, Ken Shiozaki Nobuyuki Okuma, Masatoshi Sato, Ken Shiozaki Nobuyuki Okuma, Masatoshi Sato, Ken Shiozaki Topological classification under nonmagnetic and magnetic point group symmetry: Application of real-space Atiyah-Hirzebruch spectral sequence to higher-order topology Topological classification under nonmagnetic and magnetic point group symmetry: Application of real-space Atiyah-Hirzebruch spectral sequence to higher-order topology Topological classification under nonmagnetic and magnetic point group symmetry: Application of real-space Atiyah-Hirzebruch spectral sequence to higher-order topology PHYSICAL REVIEW B, 99, 8, 085127 PHYSICAL REVIEW B, 99, 8, 085127 PHYSICAL REVIEW B, 99, 8, 085127 2019/02 Refereed English Research paper(scientific journal) Disclose to all
Nobuyuki Okuma Nobuyuki Okuma Nobuyuki Okuma Magnon Spin-Momentum Locking: Various Spin Vortices and Dirac magnons in Noncollinear Antiferromagnets Magnon Spin-Momentum Locking: Various Spin Vortices and Dirac magnons in Noncollinear Antiferromagnets Magnon Spin-Momentum Locking: Various Spin Vortices and Dirac magnons in Noncollinear Antiferromagnets PHYSICAL REVIEW LETTERS, 119, 10, 107205 PHYSICAL REVIEW LETTERS, 119, 10, 107205 PHYSICAL REVIEW LETTERS, 119, 10, 107205 2017/09 Refereed English Research paper(scientific journal) Disclose to all
Nobuyuki Okuma, Massoud Ramezani Masir, Allan H. MacDonald Nobuyuki Okuma, Massoud Ramezani Masir, Allan H. MacDonald Nobuyuki Okuma, Massoud Ramezani Masir, Allan H. MacDonald Theory of the spin-Seebeck effect at a topological-insulator/ferromagnetic-insulator interface Theory of the spin-Seebeck effect at a topological-insulator/ferromagnetic-insulator interface Theory of the spin-Seebeck effect at a topological-insulator/ferromagnetic-insulator interface PHYSICAL REVIEW B, 95, 16, 165418 PHYSICAL REVIEW B, 95, 16, 165418 PHYSICAL REVIEW B, 95, 16, 165418 2017/04 Refereed English Research paper(scientific journal) Disclose to all
Nobuyuki Okuma, Kentaro Nomura Nobuyuki Okuma, Kentaro Nomura Nobuyuki Okuma, Kentaro Nomura Microscopic derivation of magnon spin current in a topological insulator/ferromagnet heterostructure Microscopic derivation of magnon spin current in a topological insulator/ferromagnet heterostructure Microscopic derivation of magnon spin current in a topological insulator/ferromagnet heterostructure PHYSICAL REVIEW B, 95, 11, 115403 PHYSICAL REVIEW B, 95, 11, 115403 PHYSICAL REVIEW B, 95, 11, 115403 2017/03 Refereed English Research paper(scientific journal) Disclose to all
Nobuyuki Okuma, Masao Ogata Nobuyuki Okuma, Masao Ogata Nobuyuki Okuma, Masao Ogata Unconventional spin Hall effect and axial current generation in a Dirac semimetal Unconventional spin Hall effect and axial current generation in a Dirac semimetal Unconventional spin Hall effect and axial current generation in a Dirac semimetal PHYSICAL REVIEW B, 93, 14, 140205(R) PHYSICAL REVIEW B, 93, 14, 140205(R) PHYSICAL REVIEW B, 93, 14, 140205(R) 2016/04 Refereed English Research paper(scientific journal) Disclose to all
Nobuyuki Okuma 大熊信之 Nobuyuki Okuma Definition of Spin Current in Metal with Strong Spin-Orbit Coupling 強いスピン軌道相互作用を持つ金属におけるスピン流の定義 Definition of Spin Current in Metal with Strong Spin-Orbit Coupling 東京大学 東京大学 2015/03 Refereed Japanese Master's Thesis Disclose to all
Nobuyuki Okuma, Masao Ogata Nobuyuki Okuma, Masao Ogata Long-range Coulomb interaction effects on the surface Dirac electron system of a three-dimensional topological insulator Long-range Coulomb interaction effects on the surface Dirac electron system of a three-dimensional topological insulator Long-range Coulomb interaction effects on the surface Dirac electron system of a three-dimensional topological insulator Journal of Physical Society of Japan, 84, 034710 Journal of Physical Society of Japan, 84, 034710 , 84, 034710 2015/02 Refereed English Research paper(scientific journal) Disclose to all
Nobuyuki Okuma, Masao Ogata Nobuyuki Okuma, Masao Ogata Nobuyuki Okuma, Masao Ogata Study of spin transport in Dirac systems Study of spin transport in Dirac systems Study of spin transport in Dirac systems INTERNATIONAL WORKSHOP ON DIRAC ELECTRONS IN SOLIDS 2015, 603 INTERNATIONAL WORKSHOP ON DIRAC ELECTRONS IN SOLIDS 2015, 603 INTERNATIONAL WORKSHOP ON DIRAC ELECTRONS IN SOLIDS 2015, 603 2015 Refereed English Research paper(international conference proceedings) Disclose to all

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Conference Activities & Talks
Title Title(Japanese) Title(English) Conference Conference(Japanese) Conference(English) Promotor Promotor(Japanese) Promotor(English) Date Language Assortment Disclose
Physical interpretation of non-Hermitian topological phases[Invited] 非エルミートトポロジカル相の物理的解釈 [Invited] Physical interpretation of non-Hermitian topological phases [Invited] 第9回 「凝縮系理論の最前線」 第9回 「凝縮系理論の最前線」 2020/02/07 Disclose to all
Physical interpretation of non-Hermitian topology[Invited] Physical interpretation of non-Hermitian topology [Invited] Workshop Series on Non-Hermitian Quantum Mechanics Workshop Series on Non-Hermitian Quantum Mechanics 2019/11 Oral presentation(invited, special) Disclose to all
無限小摂動に誘起された 非エルミートトポロジカル相転移 無限小摂動に誘起された 非エルミートトポロジカル相転移 日本物理学会 日本物理学会 2019/09 Oral presentation(general) Disclose to all
Physics of non-Hermitian topological boundary mode[Invited] Physics of non-Hermitian topological boundary mode [Invited] Workshop on topological phases Workshop on topological phases 2019/07 English Oral presentation(invited, special) Disclose to all
実空間に対するAtiyah-Hirzebruch スペクトル系列に基づく高次トポロジカル絶縁体の分類 実空間に対するAtiyah-Hirzebruch スペクトル系列に基づく高次トポロジカル絶縁体の分類 日本物理学会 日本物理学会 2019/03 Oral presentation(general) Disclose to all
Atiyah-Hirzebruch 系列に基づくトポロジカル結晶絶縁体の分類[Invited] Atiyah-Hirzebruch 系列に基づくトポロジカル結晶絶縁体の分類 [Invited] 物質のトポロジカル相の理論的探究 物質のトポロジカル相の理論的探究 2018/12 Oral presentation(invited, special) Disclose to all
Application of Atiyah-Hirzebruch spectral sequence to real-space topological classification[Invited] Application of Atiyah-Hirzebruch spectral sequence to real-space topological classification [Invited] BEC2018X BEC2018X 2018/12 Oral presentation(invited, special) Disclose to all
非相反マグノンの重ね合わせ状態を用いた、反強磁性スピンポンピングの理論的研究 非相反マグノンの重ね合わせ状態を用いた、反強磁性スピンポンピングの理論的研究 スピン系物理の最前線 スピン系物理の最前線 2018/10 Oral presentation(general) Disclose to all
偏光下の非相反マグノンを用いた反強磁性スピンポンピングの量子論 偏光下の非相反マグノンを用いた反強磁性スピンポンピングの量子論 2018/09 Oral presentation(general) Disclose to all
オービフォールドに基づく、ワイル半金属等のスピン運動量ロッキングの分類 オービフォールドに基づく、ワイル半金属等のスピン運動量ロッキングの分類 日本物理学会 日本物理学会 2018/03 Oral presentation(general) Disclose to all
カゴメ格子反強磁性体における、マグノンスピン運動量ロッキングの理論的研究 カゴメ格子反強磁性体における、マグノンスピン運動量ロッキングの理論的研究 2017/09 Disclose to all
Magnon spin texture in momentum space Magnon spin texture in momentum space American Physical Society March Meeting American Physical Society March Meeting 2017/03 Oral presentation(general) Disclose to all
トポロジカル絶縁体/磁性体界面における電子マグノン相互作用の理論的研究 トポロジカル絶縁体/磁性体界面における電子マグノン相互作用の理論的研究 日本物理学会 日本物理学会 2016/09 Disclose to all
多バンド系におけるスピン-電荷結合ボルツマン方程式の定式化 多バンド系におけるスピン-電荷結合ボルツマン方程式の定式化 2016/03 Oral presentation(general) Disclose to all
慣習的スピン流演算子が0 のディラック電子系におけるスピンホール効果 慣習的スピン流演算子が0 のディラック電子系におけるスピンホール効果 2015/09 Oral presentation(general) Disclose to all
トポロジカル絶縁体表面Dirac系における長距離Coulomb相関効果の研究 トポロジカル絶縁体表面Dirac系における長距離Coulomb相関効果の研究 2014/09 Oral presentation(general) Disclose to all

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