University of Tokyo Project Researcher: Hiroki Katow

Hiroki Katow, Project Researcher


Project Researcher,
Photon Science Center, School of Engineering,
The University of Tokyo





Research Theme

First principles study of electron/lattice dynamics driven by coherent laser light



Mar.2013 B.Sc. Hokkaido University
Mar.2015 M.Sc. Department of Physics, the University of Tokyo
Mar.2018 Ph.D. Department of Physics, the University of Tokyo

Work Experiences.

Apr.2018-Mar.2020 Postdoctoral Fellow, National Institute of Advanced Industrial Science and Technology (AIST), Japan
Apr.2020-Present Postdoctoral Fellow, Photon Science Center, School of Engineering, the University of Tokyo


  1. Hiroki Katow, Ryosuke Akashi, Yoshiyuki Miyamoto, and Shinji Tsuneyuki, First-Principles Study of the Optical Dipole Trap for Two-Dimensional Excitons in Graphane, Phys. Rev. Lett. 129, 047401-1-6, (18 July 2022)(DOI: 10.1103/PhysRevLett.129.047401)
  2. H. Katow and Y. Miyamoto, “Ab initio approach to lattice softening of an Al slab driven by collective electronic excitations after ultrashort laser pulse irradiation”, Phys. Rev. B, 100, 085417(2019).
  3. H. Katow, J. Usukura,  R. Akashi,  K. Varga and S. Tsuneyuki, “Numerical investigation of triexciton stabilization in diamond with multiple valleys and bands”, Phys. Rev. B, 95, 125205 (2017).
  4. M. Matsumoto, H. Kato, Y. Kuwata, A. Kawamoto, N. Matsunaga, and K. Nomura, “Effect of X-ray Irradiation on the Organic Superconductor κ-(BEDT-TTF)2Cu(NCS)2 Probed by 13C-NMR”, J. Pays. Soc. Japan 81, 114709(2012).



  1. H. Katow and Y. Miyamoto, “Ehrenfest molecular dynamics approach to a light-induced softening of aluminum slab based on time-dependent density functional theory”, 2019 APS March Meeting, March 4th – 8th, Boston (Oral)
  2.  H. Katow, J. Usukura, R. Akashi, K. Varga, and S. Tsuneyuki, “Stability of Triexciton in Multi-Valley/Band Semiconductor ”, 2016 APS March Meeting, March 14th – 17th, Baltimore. (Oral)


  1.  H. Katow, R. Akashi and S. Tsuneyuki, “Feasibility of an optical manipulation technique of excitons proposed by first principles calculations”, JPS 2018 Spring Meeting, March 22nd – 25th, 2018, Noda.(Oral)
  2. H. Katow and S. Tsuneyuki, “Theoretical prediction of the feasibility of exciton optical trap by GW+BSE method”, JPS 2017 Autumn Meeting, Sep. 21st – 24th, 2017, Morioka.  (Poster, Prospect)
  3. H. Katow, J. Usukura, R. Akashi, K. Varga, and S. Tsuneyuki, “Stabilization of triexciton in diamond with multiple valley and band degrees of freedom”, 第27回光物性研究会, Dec. 2nd – 3rd, 2016, Kobe. (Poster)
  4. H. Katow, J. Usukura, R. Akashi, K. Varga, and S. Tsuneyuki, “Numerical Identification for Stabilization mechanism of Polyexciton inside Diamond”, JPS 2016 Autumn Meeting, Sep. 13th – 16th, 2016, Kanazawa.(Oral)
  5. H. Katow, J. Usukura, R. Akashi, K. Varga, and S. Tsuneyuki, “The Triexciton Stabilization in Indirect Gap Semiconductors”, International Symposium on New Horizons in Condensed Matter Physics, June 18th – 19th, Tokyo.(Poster)
  6. H. Katow, R. Akashi, and S. Tsuneyuki, “Theoretical Prediction for Inner Structure of Exciton/Excitonic Molecule in Diamond”, 2015 JPS Annual Meeting, March 21st – 24th, 2015, Tokyo.(Oral)
  7. H. Katow and S. Tsuneyuki, “Numerical calculation of ground states of polyexciton by AMD+TC method ”, 2014 JPS Autumn Meeting, Sept. 7th – 10th, Kasugai (Poster)