• Education

BS, Physics, Tohoku University (1987-1991)

Doctor (Science), Kyoto Univeristy (1991-1996)

• Research Positions

JSPS research fellow (DC1, Kyoto U., 1993-1996)

JSPS research fellow (PD, Tokyo Metro U., 1996-1997,)

Research Associate (Riken-BNL research center, Brookhaven, NY, 1997-1999)

• Faculty positions

Assistant Professor (U Tokyo, 1999-)

• Hirotsugu Fujii, Kazunori Itakura, Katsunori Miyachi, Chiho Nonaka
  Radiative hadronization: Photon emission at hadronization from quark-gluon plasma
  PhysRevC.106.034906; DOI: 10.1103/PhysRevC.106.034906; arxiv.org/2204.03116 [nucl-th]
  

• Hirotsugu Fujii, Cyrille Marquet Kazuhiro Watanabe
  Comparison of improved TMD and CGC frameworks in forward quark dijet production
  JHEP 12 (2020) 181 , (2006.16279 [hep-ph]).
  

• Hiroki Hoshina, Hirotsugu Fujii, Yoshio Kikukawa
  Schwinger-Keldysh formalism for Lattice Gauge Theories
  PoS LATTICE2019 (2020) 190
  

• H. Fujii, S. Kamata, Y. Kikukawa
  Performance of Complex Langevin Simulation in 0+1 dim. Massive Thirring Model at Finite Density
  arXiv:1710.08524 [hep-lat].

• M. Sakaida, M. Asakawa, H. Fujii, M. Kitazawa
  Dynamical evolution of critical fluctuation and its observation in heavy ion collisions
  arXiv:1703.08008[nucl-th]. PRC 95, 064905 (2017)

• H. Fujii and K. Watanabe
  Leptons from heavy-quark semileptonic decay in pA collisions within the CGC framework
  Nucl.Phys.A951 (2016) 45-59; Erratum: Nucl.Phys.A961 (2017) 218-221 arXiv:1511.07698[hep-ph].

• H. Fujii, S. Kamata, Y. Kikukawa
  Monte Carlo study of Lefschetz thimble structure in one-dimensional Thirring model at finite density
  JHEP12(2015)125, arXiv:1509:09141 [hep-lat].

• H. Fujii, S. Kamata, Y. Kikukawa
  Lefschetz thimble structure in one-dimensional lattice Thirring model at finite density
  JHEP11(2015)078, arXiv:1509:08176[hep-lat].

• A. Andronic, et al.
  Heavy-flavour and quarkonium production in the LHC era: from proton-proton to heavy-ion collisions
  arxiv:1506.03981, submitted to EPJC.

• O. Morimatsu, H. Fujii, K. Itakura, Y. Saito
  Dynamic Critical Exponent from One- and Two-Particle Irreducible 1/N Expansions of Effective and Microscopic Theories
  arXiv:1411.1867, KEK-TH-1776, UT-Komaba/14-6.

• W.-T. Deng, H. Fujii, K. Itakura, Y. Nara
  Forward Hadron Productions in high energy pp collisions from a Monte-Carlo generator for Color Glass Condensate
  PRD91 (2015) 1, 014006. arXiv:1410.2018[hep-ph], UT-Komaba-14-5.

• Hidetoshi Taya, Hirotsugu Fujii, Kazunori Itakura
  Finite pulse effects on e+e- pair creation from strong electric fields
  Phys. Rev. D90, 014039 [arXiv:1405.6182], UT-Komaba-14-1.

• Yohei Saito, Hirotsugu Fujii, Kazunori Itakura, Osamu Morimatsu
  Microscopic identification of dissipative modes in relativistic field theories
  PTEP 053A02 (2015), arXiv:1309.4892, KEK-TH-1670, UT-Komaba-13-12.

• H. Fujii, D. Honda, M. Kato, Y. Kikukawa, S. Komatsu, T. Sano
  Hybrid Monte Carlo on Lefschetz Thimbles -- A study of the residual sign problem
  JHEP 10 (2013) 147 [arXiv:1309.4371 [hep-lat]], UT-KOMABA-13-11.

• H. Fujii, K. Watanabe
  Heavy quark pair production in high energy pA collisions: Open heavy flavors
  Nucl.Phys.A 920 (2013) 78-93 [arXiv:1308.1258 [hep-ph]], UT-Komaba-13-9.

• A. Dumitru, H. Fujii, Y. Nara
  Magnetic screening in high-energy heavy-ion collisions
  Phys. Rev. D 88, 031503(R) (2013) [arXiv:1305.2789 [hep-ph]], UT-Komaba-13-7.

• H. Fujii, K. Watanabe
  Heavy quark pair production in high energy pA collisions: Quarkonium
  Nucl. Phys. A915 (2013) 1-23 [arXiv:1304.2221 [hep-ph]], UT-Komaba-13-5.

• J. Albacete, A. Dumitru, H. Fujii, Y. Nara,
  CGC predictions for p+Pb collisions at the LHC
  Nucl.Phys. A 897 (2013) 1-17 [arXiv:1209:2001], UT-Komaba/12-8. [DOI: 10.1016/j.nuclphysa.2012.09.012]

• Y. Saito, H. Fujii, K. Itakura, O. Morimatsu,
  Critical Exponents from Two-particle Irreducible 1/N Expansion
  Phys. Rev. D85 (2012), 065019 [arXiv:1108:1266], UT-Komaba/11-5, KEK-TH-1477 (Aug 2011) 18p.

• H. Fujii and T. Sano,
  Random matrix model at nonzero chemical potentials with anomaly effects
  Phys. Rev. D83 (2011), 014005 [arXiv:1009:5977], UT-Komaba/10-7.

• H. Fujii and T. Sano,
  A chiral random matrix model with 2+1 flavors at finite temperature and density
  Phys. Rev. D81 (2010), 037502 [arXiv:0912.5063], UT-Komaba/09-8.

• T. Sano, H. Fujii and M. Ohtani,
  UA(1) breaking and phase transition in chiral random matrix model
  Phys. Rev. D80 (2009), 034007 [arXiv:0904.1860], UT-Komaba/09-3.

• H. Fujii, K. Itakura, A. Iwazaki
  "Instabilities in Non-Expanding Glasma"
  Nucl.Phys.A 828 (2009) 178-190 [arXiv:0903.2930], UT-Komaba/09-2.

• H. Fujii, K. Fukushima, Y. Hidaka,
  "Initial Energy Density and Gluon Distribution from the Glasma in Heavy-Ion Collisions"
  Phys. Rev. C79 (2009) 024909 [arXiv:0811.0437], UT-Komaba/08-17.

• H. Fujii, K. Itakura
  "Expanding color flux tubes and instabilities"
  Nucl. Phys. A 809 (2008) pp.88-109; arXiv:0803.0410, UT-Komaba/08-6.

• H. Fujii, F. Gelis, R. Venugopalan
  "Quark pair production in high energy pA collisions: General features"
  Nucl.Phys.A780, 146-174, 2006 [hep-ph/0603099].

• Y. Hashimoto, Y. Tsue, H. Fujii
  "Effective Potential Study of Chiral Phase Transition in the QCD-like Theory"
  Prog. Theor. Phys. 114, p595 (2005), arXive:hep-ph/0506017.

• H. Fujii, F. Gelis, and R. Venugopalan
  "Quantitative Study of the Violation of kT-Factorization in Hadroproduction of Quarks at Collider Energies
  Phys. Rev. Lett. 95, 162002 (2005) [hep-ph/0504047], UT-Komaba/05-03.

• H. Fujii and M. Ohtani
  "Sigma and hydrodynamic modes along the critical line
  PRD70, 014016 (2004), hep-ph/0402263, UT-Komaba/04-03.

• H. Fujii
  "Scalar density fluctuation at the critical end point in the NJL model
  PRD67, 094018 (2003), hep-ph/0302167, UT-Komaba/03-02.

• H. Fujii
  "J/psi suppression in heavy ion collisions by quark momentum diffusion
  PRC 67, 031901(R), (2003), hep-ph/0209197, UT-Komaba/02-10.

• H. Fujii
  "Penetration of a high energy Q \bar Q bound state through SU(N) color background"
  Nucl.Phys.A 709 (2002) 236; nucl-th/0205066; UT-Komaba/02-05.

• H. Fujii and T. Matsui
  "Superpenetration of a high energy Q \bar Q bound state through random color fields"
  Phys.Lett.B 545 (2002) 82; nucl-th/0204065, UT-Komaba/02-04.

• J. Ellis, H.Fujii and D.Kharzeev
  "Scalar Glueball Quarkonium Mixing and the Structure of the QCD Vacuum"
  hep-ph/9909322, UT-Komaba/99-16 (unpublished).

• H.Fujii and D.Kharzeev
  "Long-Range Forces of QCD",
  Phys.Rev.D60, 114039 (1999);hep-ph/9903495.

• H. Shin and H. Fujii
  "Dilepton Production in Meson Condensed Matter,"
  Prog. Theor. Phys. 98 1139--1155 (1997).

• T. Maruyama, H. Shin, H. Fujii and T. Tatsumi
  "K+(K0) Condensation in Highly Dense Matter with the Relativistic Mean-Field Theory"
  Prog. Theor. Phys. 102 (1999) pp 809-818; nucl-th/9610048.

• H. Fujii, T. Maruyama, T. Muto and T. Tatsumi
  "Equation of State with Kaon Condensates and Neutron Stars",
  Nucl. Phys. A597 645-671 (1996).

• H. Fujii and Y. Tsue
  "Quark condensate in a medium and pion-nucleon sigma term based on a QCD-like theory",
  Phys. Lett. B357 199-203 (1995).

• H. Fujii, T. Muto, T. Tatsumi and R. Tamagaki
  "Effects of Symmetry Energy on the Direct URCA Process in the Kaon Condensed Phase",
  Phys. Rev. C50 3140-3146 (1994).

• T. Maruyama, H. Fujii, T. Muto and T. Tatsumi
  " Kaon Condensation and Equation of State in the Relativistic Mean-Field Theory", Phys. Lett. B337 19-24 (1994).

• H. Fujii, T. Muto, T. Tatsumi and R. Tamagaki
  " Effects of Weak Interaction on Kaon Condensation and Cooling of Neutron Stars",
  Nucl. Phys. A571 758-783 (1994).