Yamagata Koichi 山形浩一

Researcher Number	30743520
Other IDs	https://orcid.org/0000-0003-1277-3468
Affiliation (Current)	2025: 金沢大学, 電子情報通信学系, 准教授 2025: 電気通信大学, 人工知能先端研究センター, 客員准教授
Affiliation (based on the past Project Information) *help	2023 – 2024: 金沢大学, 電子情報通信学系, 准教授 2021 – 2022: 国立情報学研究所, 情報学プリンシプル研究系, 特任准教授
Review Section/Research Field	Principal Investigator Basic Section 13010:Mathematical physics and fundamental theory of condensed matter physics-related Except Principal Investigator Sections That Are Subject to Joint Review: Basic Section12030:Basic mathematics-related , Basic Section12040:Applied mathematics and statistics-related / Basic Section 12030:Basic mathematics-related / Basic Section 12040:Applied mathematics and statistics-related / Foundations of mathematics/Applied mathematics
Keywords	Principal Investigator 量子中心極限定理 / 量子ガウス状態 / 漸近正規性 / 量子推定 / 漸近ミニマックス定理 / ユニタリ通信路 / 仮設検定 / 漸近表現定理 / 局所漸近正規性 / 量子統計 … More Except Principal Investigator … More 情報幾何学 / 量子統計学 / 機械学習 / Chentsovの定理 / 量子トモグラフィ / 非可換Lebesgue分解 / ランダム力学系 / 局所漸近正規性 / 統計多様体 Less

量子力学的システムの統計的性質に内在する情報幾何構造の総合的研究
- Principal Investigator
  
  藤原彰夫
- Project Period (FY)
  2023 – 2027
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 12040:Applied mathematics and statistics-related
  Basic Section 12030:Basic mathematics-related
  Sections That Are Subject to Joint Review: Basic Section12030:Basic mathematics-related , Basic Section12040:Applied mathematics and statistics-related
- Research Institution
  Osaka University
量子統計における漸近理論Principal Investigator
- Principal Investigator
  
  山形浩一
- Project Period (FY)
  2022 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 13010:Mathematical physics and fundamental theory of condensed matter physics-related
- Research Institution
  Kanazawa University
  National Institute of Informatics
Exploring novel information geometrical structures in classical/quantum statistical systems
- Principal Investigator
  
  Fujiwara Akio
- Project Period (FY)
  2017 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Foundations of mathematics/Applied mathematics
- Research Institution
  Osaka University

All 2023 2020 2018 2017

All Journal Article Presentation

[Journal Article] Efficiency of estimators for locally asymptotically normal quantum statistical models2023
- Author(s)
  Fujiwara Akio、Yamagata Koichi
- Journal Title
  
  The Annals of Statistics
  
  Volume: 51 Issue: 3 Pages: 1159-1182
- DOI
  10.1214/23-aos2285
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-22K03466
[Journal Article] Noncommutative Lebesgue decomposition and contiguity with applications in quantum statistics2020
- Author(s)
  Fujiwara Akio、Yamagata Koichi
- Journal Title
  
  Bernoulli
  
  Volume: 26 Issue: 3 Pages: 2105-2142
- DOI
  10.3150/19-bej1185
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17H02861
[Journal Article] Information Geometry of Randomized Quantum State Tomography2018
- Author(s)
  Akio Fujiwara and Koichi Yamagata
- Journal Title
  
  Entropy
  
  Volume: 20 Issue: 8 Pages: 609-609
- DOI
  10.3390/e20080609
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17H02861
[Journal Article] Experimental demonstration of adaptive quantum state estimation for single photonic qubits2017
- Author(s)
  Okamoto Ryo、Oyama Satoshi、Yamagata Koichi、Fujiwara Akio、Takeuchi Shigeki
- Journal Title
  
  Physical Review A
  
  Volume: 96 Issue: 2 Pages: 022124-022124
- DOI
  10.1103/physreva.96.022124
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-26220712, KAKENHI-PROJECT-17H02861
[Presentation] A theory of quantum local asymptotic normality, Part II: Asymptotic representation theorem2023
- Author(s)
  Koichi Yamagata
- Organizer
  Mini Workshop: Recent Advances in Quantum Mathematical Statistics
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03466
[Presentation] 局所漸近正規性を有する量子統計モデルに対する推定量の有効性2023
- Author(s)
  山形浩一, 藤原彰夫
- Organizer
  日本数学会2023年度年会
- Data Source
  KAKENHI-PROJECT-22K03466
[Presentation] 量子推定における漸近理論の最近の進展2023
- Author(s)
  山形浩一
- Organizer
  第3回QIQBセミナー
- Invited
- Data Source
  KAKENHI-PROJECT-22K03466

1. Fujiwara Akio (30251359)

# of Collaborated Projects: 2 results

# of Collaborated Products: 2 results
2. 佐藤譲 (30342794)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. 杉田洋 (50192125)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. 長岡浩司 (80192235)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. OKAMOTO ryo

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
6. FUJIWARA masazumi

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
7. 竹内繁樹

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Yamagata Koichi 山形 浩一

Research Projects

Research Products

Co-Researchers

量子力学的システムの統計的性質に内在する情報幾何構造の総合的研究

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

量子統計における漸近理論Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Exploring novel information geometrical structures in classical/quantum statistical systems

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Efficiency of estimators for locally asymptotically normal quantum statistical models2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Noncommutative Lebesgue decomposition and contiguity with applications in quantum statistics2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Information Geometry of Randomized Quantum State Tomography2018

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Experimental demonstration of adaptive quantum state estimation for single photonic qubits2017

Author(s)

Journal Title

DOI

Data Source

[Presentation] A theory of quantum local asymptotic normality, Part II: Asymptotic representation theorem2023

Author(s)

Organizer

Data Source

[Presentation] 局所漸近正規性を有する量子統計モデルに対する推定量の有効性2023

Author(s)

Organizer

Data Source

[Presentation] 量子推定における漸近理論の最近の進展2023

Author(s)

Organizer

Data Source

Yamagata Koichi 山形浩一