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Researcher Information

last modified:2020/03/26

Assistant Professor SAIKAWA, Kenichi

Laboratory Website

Faculty, Affiliation

Faculty of Mathematics and Physics, Institute of Science and Engineering
Assistant Professor

College and School Educational Field


Institute of Theoretical Physics

Academic Background

【Academic background(Doctoral/Master's Degree)】
The University of Tokyo Doctor Department of Physics 201303 Completed
The University of Tokyo Master Department of Physics 201003 Completed
【Academic background(Bachelor's Degree)】
The University of Tokyo Department of Physics 200803
Ph.D. of Science


Kanazawa University School of Mathematics and Physics Assistant Professor(2019/11/01-)
Max-Planck-Institute for Physics (Werner-Heisenberg-Institut) Theory Group Postdoc fellow(2017/10/01-2019/10/31)
Deutsches Elektronen-Synchrotron DESY Theory Group Postdoc fellow(2015/10/01-2017/09/30)
Tokyo Institute of Technology JSPS research fellow (PD)(2013/04/01-2016/03/31)
Institute for Cosmic Ray Research, The University of Tokyo Theory Group JSPS research fellow (DC2)(2011/04/01-2013/03/31)

Year & Month of Birth


Academic Society

Japan Particle and Nuclear Theory Forum
Association of Japanese Theoretical Astronomy and Astrophysics
The Physical Society of Japan



Particle/Nuclear/Cosmic ray/Astro physics

Speciality Keywords

Cosmology, Astroparticle Physics

Research Themes



  •  Primordial gravitational waves, precisely: The role of thermodynamics in the Standard Model Ken'ichi Saikawa, Satoshi Shirai JCAP 05 035 2018
  •  Stellar recipes for axion hunters Maurizio Giannotti, Igor G. Irastorza, Javier Redondo, Andreas Ringwald, Ken'ichi Saikawa JCAP 10 010 2017
  •  A review of gravitational waves from cosmic domain walls Ken'ichi Saikawa Universe 3 40 2017
  •  Axion dark matter from topological defects Masahiro Kawasaki, Ken'ichi Saikawa, Toyokazu Sekiguchi Phys. Rev. D 91 065014 2015
  •  Axion cosmology with long-lived domain walls Takashi Hiramatsu, Masahiro Kawasaki, Ken'ichi Saikawa, Toyokazu Sekiguchi JCAP 01 001 2013

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  •  Production of dark matter axions from collapse of string-wall systems Takashi Hiramatsu, Masahiro Kawasaki, Ken'ichi Saikawa, Toyokazu Sekiguchi Phys. Rev. D 85 105020 2012

Conference Presentations

Arts and Fieldwork


Theme to the desired joint research

Grant-in-Aid for Scientific Research


Classes (Bachelors)

Classes (Graduate Schools)

International Project

International Students

Lecture themes

Others (Social Activities)

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