UMETSU Kouichirou

Department of Liberal Arts and ScienceAssociate Professor

Research Keyword

  • Uncertainty Relation
  • Hawking Radiation
  • Black Hole
  • Quantum Gravity

Field Of Study

  • Natural sciences, Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics, Particle/Nuclear/Cosmic ray/Astro physics

Career

  • Apr. 2010 - Mar. 2013
    Kyoto Sangyo University, Maskawa Institute, Postdoctoral Fellow

Educational Background

  • 01 Apr. 2007 - 25 Mar. 2010
    Nihon University, Graduate School of Science and Technology, Quantum Science and Technology
  • Apr. 2007 - Mar. 2010
    Nihon University, Graduate School of Science and Technology, Quantum Science and Technology

Member History

  • Sep. 2012 - Sep. 2012
    2012年秋季大会実行委員, 日本物理学会

Paper

  • ★Berry’s Phase and Quantum Mechanical Formulation of Anomalous Hall Effect
    Kazuo Fujikawa; Koichiro Umetsu
    Journal of the Physical Society of Japan, Dec. 2023
  • ★Berry’s phase and chiral anomalies
    Kazuo Fujikawa and Koichiro Umetsu
    Progress in Particle and Nuclear Physics, Jan. 2023, Refereed, Invited
  • ★Lensing of Dirac monopole in Berry’s phase
    Kazuo Fujikawa and Koichiro Umetsu
    Physical Review D, May 2021, Refereed
  • ★Blackbody radiation model inspired from black hole evaporation
    Koichiro Umetsu
    Modern Physics Letters A, Dec. 2020, Refereed, Not invited
  • A path integral derivation of the equations of anomalous Hall effect
    Kazuo Fujikawa and Koichiro Umetsu
    Physical Review B, Apr. 2022, Refereed
  • A classical limit of Grover’s algorithm induced by dephasing: Coherence versus entanglement
    Kazuo Fujikawa; C. H. Oh and Koichiro Umetsu
    Modern Physics Letters A, Feb. 2019, Refereed, Not invited
    Corresponding
  • Separability criteria with angular and Hilbert space averages
    Kazuo Fujikawa; C. H. Oh; Koichiro Umetsu; Sixia Yu
    ANNALS OF PHYSICS, May 2016, Refereed, Not invited
  • Aspects of universally valid Heisenberg uncertainty relation
    Kazuo Fujikawa; Koichiro Umetsu
    PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, Jan. 2013, Not refereed, Not invited
  • Hawking radiation as tunneling from squashed Kaluza-Klein black hole
    Ken Matsuno; Koichiro Umetsu
    Physical Review D, Mar. 2011, Refereed, Not invited
  • Derivation of Hawking Radiation on the Basis of Quantum Tunneling and Dimensional Reduction near the Horizon
    Koichiro Umetsu
    京都産業大学論集, Mar. 2011, Refereed, Not invited
    Lead
  • Uncertainty Relation and Probability - Numerical Illustration
    Kazuo Fujikawa; Koichiro Umetsu
    PROGRESS OF THEORETICAL PHYSICS, Feb. 2011, Refereed, Not invited
  • Tunneling mechanism in Kerr-Newman black hole and dimensional reduction near the horizon
    Koichiro Umetsu
    PHYSICS LETTERS B, Aug. 2010, Refereed, Not invited
  • HAWKING RADIATION FROM KERR NEWMAN BLACK HOLE AND TUNNELING MECHANISM
    Koichiro Umetsu
    INTERNATIONAL JOURNAL OF MODERN PHYSICS A, Aug. 2010, Refereed, Not invited
  • Recent Attempts in the Analysis of Black Hole Radiation
    Koichiro Umetsu
    Mar. 2010, Refereed, Not invited
    Lead
  • Clear Evasion of the Uncertainty Relation with Very Small Probability
    Kazuo Fujikawa; Koichiro Umetsu
    PROGRESS OF THEORETICAL PHYSICS, Nov. 2008, Refereed, Not invited
  • Ward identities in the derivation of Hawking radiation from anomalies
    Koichiro Umetsu
    PROGRESS OF THEORETICAL PHYSICS, May 2008, Refereed, Not invited

Books and other publications

  • Black Holes: Evolution, Theory and Thermodynamics
    Koichiro Umetsu, Joint work, Effective Theory of Matter Field near the Event Horizon, Koichiro Umetsu; et al.
    Nova Science Publishers, Aug. 2012, Not refereed
    9781619429291

Lectures, oral presentations, etc.

  • ベリー位相に現れるディラックモノポールは動くのか?
    出口真一,藤川和男,梅津光一郎
    日本物理学会2021年秋季大会, Sep. 2021, 日本物理学会, Not invited
  • ベリー位相に基づく新しいモノポール
    出口真一,藤川和男,梅津光一郎
    日本物理学会2021年秋季大会, Sep. 2021, 日本物理学会, Not invited
  • 2つの電子天秤を同時に用いた浮力実験装置の研究開発 ー浮力,アルキメデスの原理,密度を学ぶー
    伴周一,大久保尚紀,岡田悟志,坂元啓紀,豊田陽己,梅津光一郎
    日本工学教育協会第67回年次大会・工学教育研究講演会, Sep. 2019, 日本工学教育協会
  • A classical limit of Glover's algorithm induced by dephasing: Coherence vs entanglement
    Kazuo Fujikawa and Koichiro Umetsu
    日本物理学会第74回年次大会, Mar. 2019, 日本物理学会
  • Blacbody radiation model inspired from black hole evaporation
    Koichiro Umetsu
    International Conference on New Trends in Field Theories 2018, Varanasi, India, Nov. 2018, Banaras Hindu University, Invited
  • A classical limit of Grover's algorithm
    藤川和男,梅津光一郎
    第8回日大理工・益川塾連携素粒子物理学シンポジウム, Nov. 2018
  • Blackbody radiation model inspired from black hole evaporation
    梅津光一郎
    日本物理学会2018年秋季大会, Sep. 2018, 日本物理学会, Not invited

Affiliated academic society

  • May 2008 - Present
    The Physical Society of Japan