Nagata Keitaro 永田桂太郎

Researcher Number	00586901
Other IDs
Affiliation (based on the past Project Information) *help	2016 – 2017: 高知大学, 教育研究部医療学系連携医学部門, 助教 2014 – 2015: 大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 研究員
Review Section/Research Field	Principal Investigator Particle/Nuclear/Cosmic ray/Astro physics
Keywords	Principal Investigator 理論物理学の進展 / 特異ドリフト問題に対する新解法 / シルバーブレイズ / 複素ランジュバン法 / 有限密度QCD / 低温有限密度QCD / 符号問題

Study of QCD at low temperature and finite density with a new technique for lattice fermionsPrincipal Investigator
- Principal Investigator
  
  Nagata Keitaro
- Project Period (FY)
  2014 – 2017
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Particle/Nuclear/Cosmic ray/Astro physics
- Research Institution
  Kochi University
  High Energy Accelerator Research Organization

All 2018 2017 2016 2015 2014 Other

All Journal Article Presentation

[Journal Article] Testing the criterion for correct convergence in the complex Langevin method2018
- Author(s)
  Keitaro Nagata, Jun Nishimura, Shinji Shimasaki
- Journal Title
  
  JHEP
  
  Volume: 05 Issue: 5 Pages: 004-004
- DOI
  10.1007/jhep05(2018)004
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-26800154, KAKENHI-PROJECT-16H03988
[Journal Article] Complex Langevin simulation of QCD at finite density and low temperature using the deformation technique2018
- Author(s)
  K.Nagata, J.Nishimura and S.Shimasaki
- Journal Title
  
  EPJ Web Conf.
  
  Volume: 175 Pages: 07017-07017
- DOI
  10.1051/epjconf/201817507017
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H03988, KAKENHI-PROJECT-26800154
[Journal Article] Gauge cooling for the singular-drift problem in the complex Langevin method - a test in Random Matrix Theory for finite density QCD2016
- Author(s)
  K.Nagata, J.Nishimura and S.Shimasaki
- Journal Title
  
  JHEP
  
  Volume: 1607 Issue: 7 Pages: 073-073
- DOI
  10.1007/jhep07(2016)073
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-16H03988, KAKENHI-PROJECT-26800154
[Journal Article] Gauge cooling for the singular-drift problem in the complex Langevin method --- an application to finite density QCD2016
- Author(s)
  K. Nagata, H. Matsufuru, J. Nishimura, S. Shimasaki
- Journal Title
  
  Proceedins of Science
  
  Volume: LATTICE2016 Pages: 067-074
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-26800154
[Journal Article] Entanglement in Four Dimensional SU(3) gauge theory2016
- Author(s)
  E. Itou, K. Nagata, Y. Nakagawa, A. Nakamura, V. I. Zakharov
- Journal Title
  
  Prog. Theor. Exp. Phys.
  
  Volume: 印刷中
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-26800154
[Journal Article] Entanglement entropy for pure gauge theories in 1+1 dimensions using the lattice regularization2016
- Author(s)
  Sinya Aoki, Etsuko Itou, Keitaro Nagata
- Journal Title
  
  IJMPA
  
  Volume: 31 Issue: 35 Pages: 1650192-1650192
- DOI
  10.1142/s0217751x1650192x
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-25287046, KAKENHI-PROJECT-26800154
[Journal Article] Justification of the complex Langevin method with the gauge cooling procedure2016
- Author(s)
  K. Nagata, J. Nishimura, S. Shimasaki
- Journal Title
  
  Prog. Theor. Exp. Phys.
  
  Volume: 013B Issue: 1 Pages: 01-01
- DOI
  10.1093/ptep/ptv173
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-26800154, KAKENHI-PROJECT-23244057
[Journal Article] Test for a universal behavior of Dirac eigenvalues in the complex Langevin method2016
- Author(s)
  Terukazu Ichihara, Keitaro Nagata, Kouji Kashiwa
- Journal Title
  
  Physical Review D
  
  Volume: 93 Issue: 9 Pages: 094511-094511
- DOI
  10.1103/physrevd.93.094511
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-14J01717, KAKENHI-PROJECT-26800154
[Journal Article] On the condition for correct convergence in the complex Langevin method2016
- Author(s)
  S. Shimasaki, K. Nagata, J. Nishimura
- Journal Title
  
  Proceedings of Science
  
  Volume: LATTICE2016 Pages: 071-078
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-26800154
[Journal Article] Probing QCD phase structure using baryon multiplicity distribution2016
- Author(s)
  A. Nakamura and K. Nagata
- Journal Title
  
  Prog. Theor. Exp. Phys.
  
  Volume: 3 Issue: 3 Pages: 033D01-033D01
- DOI
  10.1093/ptep/ptw013
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-26610072, KAKENHI-PROJECT-26800154, KAKENHI-PROJECT-15H03663
[Journal Article] Test for a universal behavior of Dirac eigenvalues in the complex Langevin method2016
- Author(s)
  T. Ichihara, K. Nagata and K. Kashiwa
- Journal Title
  
  Phys. Rev. D
  
  Volume: 印刷中
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26800154
[Journal Article] Testing a generalized cooling procedure in the complex Langevin simulation of chiral Random Matrix Theory2016
- Author(s)
  K. Nagata, J. Nishimura, S. Shimasaki
- Journal Title
  
  PoS LATTICE 2015
  
  Volume: 印刷中
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-26800154
[Journal Article] Argument for justification of the complex Langevin method and the condition for correct convergence2016
- Author(s)
  K.Nagata, J.Nishimura and S.Shimasaki,
- Journal Title
  
  Phys. Rev. D
  
  Volume: 94, no.11 Issue: 11 Pages: 114515-114515
- DOI
  10.1103/physrevd.94.114515
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-16H03988, KAKENHI-PROJECT-26800154
[Journal Article] Net-Baryon Multiplicity and QCD phase diagram2015
- Author(s)
  A. Nakamura, R. Fukuda, S. Oka, S. Sakai, K. Morita, K. Nagata
- Journal Title
  
  PoS CPOD2014
  
  Volume: 2014 Pages: 021-021
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-26800154
[Journal Article] A filtering technique for the temporally reduced matrix of the Wilson fermion determinant2015
- Author(s)
  Y. Futamura, S. Hashimoto, A. Imakura, K. Nagata, and T. Sakurai
- Journal Title
  
  PoS(LATTICE2014)
  
  Volume: 2015 Pages: 049-049
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-26800154
[Journal Article] Lee-Yang zero distribution of high temperature QCD and Roberge-Weiss phase transition2015
- Author(s)
  K. Nagata, K. Kashiwa, A. Nakamura, and S. M. Nishigaki
- Journal Title
  
  Physical Review D
  
  Volume: 91
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-26800154
[Presentation] Recent progress in finite density lattice QCD towards high density2017
- Author(s)
  Keitaro Nagata
- Organizer
  Exploration for QCD phase diagram
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26800154
[Presentation] 拡張されたゲージクーリング法を用いた低温有限密度QCDの複素ランジュバンシミュレーション2016
- Author(s)
  永田桂太郎、松古英夫、西村淳、島崎信二
- Organizer
  日本物理学会2016秋季大会
- Place of Presentation
  宮崎大学木花キャンパス、宮崎県、宮崎市
- Year and Date
  2016-09-21
- Data Source
  KAKENHI-PROJECT-26800154
[Presentation] New criterion for correctness in the complex Langevin method - an application to finite density QCD2016
- Author(s)
  K. Nagata, H. Matufuru, J. Nishimura, S. Shimasaki
- Organizer
  34th International Symposium on Lattice Field Theory
- Place of Presentation
  Southampton, UK
- Year and Date
  2016-07-24
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26800154
[Presentation] New criterion for correctness in the complex Langevin method - an application to finite density QCD2016
- Author(s)
  K. Nagata, H. Matufuru, J. Nishimura, S. Shimasaki
- Organizer
  XQCD 2016
- Place of Presentation
  Plymouth, UK
- Year and Date
  2016-08-01
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26800154
[Presentation] Lee-Yang zero distribution of high temperature QCD and Roberge-Weiss phase transition2015
- Author(s)
  永田桂太郎
- Organizer
  格子QCDと現象論模型による有限温度・有限密度の物理の解明
- Place of Presentation
  九州大学
- Year and Date
  2015-02-19
- Invited
- Data Source
  KAKENHI-PROJECT-26800154
[Presentation] 有限密度格子 QCD の最近の発展と低温高密度への展望2015
- Author(s)
  永田桂太郎
- Organizer
  原子核ハドロン物理の課題と将来
- Place of Presentation
  高エネルギー加速器研究機構（茨城県つくば市）
- Year and Date
  2015-11-24
- Data Source
  KAKENHI-PROJECT-26800154
[Presentation] Testing a generalized cooling procedure in the complex Langevin simulation of chiral Random Matrix Theory2015
- Author(s)
  Keitaro Nagata
- Organizer
  33rd International Symposium on Lattice Field Theory
- Place of Presentation
  Kobe International Conference Center( Kobe, Japan )
- Year and Date
  2015-07-14
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26800154
[Presentation] Background of high energy physics – motivation and situation of the study of QCD2015
- Author(s)
  Keitaro Nagata
- Organizer
  10sor Network Workshop
- Place of Presentation
  東京大学柏の葉フューチャーセンター(千葉県柏市)
- Year and Date
  2015-05-14
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26800154
[Presentation] Canonical partition functions and Lee-Yang zeros in QCD2015
- Author(s)
  Keitaro Nagata
- Organizer
  Hadrons and Hadron Interactions of QCD
- Place of Presentation
  YITP, Kyoto
- Year and Date
  2015-03-04
- Invited
- Data Source
  KAKENHI-PROJECT-26800154
[Presentation] Finite density lattice QCD simulations towards QGP, heavy ion collisions, nuclear matter2015
- Author(s)
  Keitaro Nagata
- Organizer
  Quarks to Universe in Computational Science
- Place of Presentation
  奈良春日野国際フォーラム　甍～I・RA・KA～(奈良県奈良市)
- Year and Date
  2015-11-04
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26800154
[Presentation] A new method for fermionic singular-drift problem in the complex Langevin method2015
- Author(s)
  Keitaro Nagata
- Organizer
  Sign 2015
- Place of Presentation
  MTA Atomki(Debrecen, Hungary)
- Year and Date
  2015-09-29
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26800154
[Presentation] 高温QCDのLee-Yangゼロ点分布2015
- Author(s)
  Keitaro Nagata, Kouji Kashiwa, Atsushi Nakamura, Shinsuke M.Nishigaki
- Organizer
  日本物理学会
- Place of Presentation
  早稲田大学
- Year and Date
  2015-03-24
- Data Source
  KAKENHI-PROJECT-26800154
[Presentation] A filering technique for the temporally reduced matrix of the Wilson fermion determinant2014
- Author(s)
  Keitaro Nagata
- Organizer
  LATTCE 2014
- Place of Presentation
  Columbia University, New York
- Year and Date
  2014-06-27
- Data Source
  KAKENHI-PROJECT-26800154
[Presentation] Properties of the baryon number distribution in QGP
- Author(s)
  永田桂太郎
- Organizer
  Fourth Joint Meeting of the Nuclear Physics Divisions of the APS and JPS
- Place of Presentation
  Waikoloa Village, Hawaii
- Year and Date
  2014-10-07 – 2014-10-11
- Data Source
  KAKENHI-PROJECT-26800154
[Presentation] SU(3)非可換ゲージ理論におけるエンタングルメントエントロピー
- Author(s)
  永田桂太郎
- Organizer
  量子他体系の新しい潮流-テンソルネットワーク、くりこみ群、エンタングルメント
- Place of Presentation
  京都大学基礎物理学研究所
- Year and Date
  2014-12-15 – 2014-12-17
- Data Source
  KAKENHI-PROJECT-26800154
[Presentation] Baryon number distribution in lattice QCD
- Author(s)
  Keitaro Nagata
- Organizer
  Computational Nuclear Physics II
- Place of Presentation
  Waikoloa Village, Hawaii
- Year and Date
  2014-10-05 – 2014-10-07
- Invited
- Data Source
  KAKENHI-PROJECT-26800154

1. 西村淳

# of Collaborated Projects: 0 results

# of Collaborated Products: 3 results
2. 青木慎也

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
3. 中村純

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Nagata Keitaro 永田 桂太郎

Research Projects

Research Products

Co-Researchers

Study of QCD at low temperature and finite density with a new technique for lattice fermionsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Testing the criterion for correct convergence in the complex Langevin method2018

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Complex Langevin simulation of QCD at finite density and low temperature using the deformation technique2018

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Gauge cooling for the singular-drift problem in the complex Langevin method - a test in Random Matrix Theory for finite density QCD2016

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Gauge cooling for the singular-drift problem in the complex Langevin method --- an application to finite density QCD2016

Author(s)

Journal Title

Data Source

[Journal Article] Entanglement in Four Dimensional SU(3) gauge theory2016

Author(s)

Journal Title

Data Source

[Journal Article] Entanglement entropy for pure gauge theories in 1+1 dimensions using the lattice regularization2016

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Justification of the complex Langevin method with the gauge cooling procedure2016

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Test for a universal behavior of Dirac eigenvalues in the complex Langevin method2016

Author(s)

Journal Title

DOI

Data Source

[Journal Article] On the condition for correct convergence in the complex Langevin method2016

Author(s)

Journal Title

Data Source

[Journal Article] Probing QCD phase structure using baryon multiplicity distribution2016

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Test for a universal behavior of Dirac eigenvalues in the complex Langevin method2016

Author(s)

Journal Title

Data Source

[Journal Article] Testing a generalized cooling procedure in the complex Langevin simulation of chiral Random Matrix Theory2016

Author(s)

Journal Title

Data Source

[Journal Article] Argument for justification of the complex Langevin method and the condition for correct convergence2016

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Net-Baryon Multiplicity and QCD phase diagram2015

Author(s)

Journal Title

Data Source

[Journal Article] A filtering technique for the temporally reduced matrix of the Wilson fermion determinant2015

Author(s)

Journal Title

Data Source

[Journal Article] Lee-Yang zero distribution of high temperature QCD and Roberge-Weiss phase transition2015

Author(s)

Nagata Keitaro 永田桂太郎

[Presentation] 有限密度格子 QCD の最近の発展と低温高密度への展望2015

[Presentation] Background of high energy physics – motivation and situation of the study of QCD2015