Masashi Kimura's web page

2022-present : Lecturer, Daiichi Institute of Technology.
2019-2022 : Assistant professor, Institute of Theoretical Physics, Department of Physics, Rikkyo University.
2016-2019 : Postdoc (ERC Fellow), CENTRA, Instituto Superior Tecnico, Universidade de Lisboa (University of Lisbon).
2014-2016 : JSPS postdoc, DAMTP, University of Cambridge.
2011-2014 : JSPS postdoc, Yukawa Institute for Theoretical Physics, Kyoto University.
2010-2014 : Part-time lecturer, Osaka Sangyo University.
2010-2011 : Postdoc, Osaka City University Advanced Mathematical Institute.
2008-2010 : JSPS Research Fellow(DC2), Osaka City University.
2007-2010 : PhD, Osaka City University, Osaka, Japan. 

Publication list

1. Shin'ichi Hirano, Masashi Kimura, Masahide Yamaguchi, Jiale Zhang,
   "Parametrized Black Hole Quasinormal Ringdown Formalism for Higher Overtones",
   arXiv:2404.09672 [gr-qc].

2. Shin'ichi Hirano, Masashi Kimura, Masahide Yamaguchi,
   "Gravitational mode mixing around black holes in scalar-tensor theories with parity-violating terms",
   arXiv:2404.07039 [gr-qc],
   accepted for publication in Phys. Rev. D.

3. Keisuke Nakashi, Masashi Kimura, Hayato Motohashi, Kazufumi Takahashi,
   "Black hole ringdown from physically sensible initial value problem in higher-order scalar-tensor theories",
   Phys.Rev.D.109,024034,2024,
   arXiv:2310.09839 [gr-qc].

4. Yasuyuki Hatsuda, Masashi Kimura,
   "Perturbative quasinormal mode frequencies",
   Phys.Rev.D.109,044026,2024,
   arXiv:2307.16626 [gr-qc].

5. Takuya Katagiri, Masashi Kimura, Hiroyuki Nakano, Kazuyuki Omukai,
   "Vanishing Love of Black Holes in General Relativity: From Spacetime Conformal Symmetry of a Two-dimensional Reduced Geometry",
   Phys.Rev.D.107,124030,2023,
   arXiv:2209.10469 [gr-qc].

6. Takuya Katagiri, Masashi Kimura,
   "Ladder operators and quasinormal modes in Banados-Teitelboim-Zanelli black holes",
   Phys.Rev.D.106,044052,2022,
   arXiv:2205.15610 [gr-qc].

7. Keisuke Nakashi, Masashi Kimura, Hayato Motohashi and Kazufumi Takahashi,
   "Black hole perturbations in higher-order scalar-tensor theories: initial value problem and dynamical stability",
   Class.Quant.Grav.39:175003,2022,
   arXiv:2204.05054 [gr-qc].

8. Yasutaka Koga, Nobuyuki Asaka, Masashi Kimura, Kazumasa Okabayashi,
   "Dynamical photon sphere and time evolving shadow around black holes with temporal accretion",
   Phys.Rev.D.105.104040,2022,
   arXiv:2202.00201 [gr-qc].

9. Takuya Katagiri, Masashi Kimura,
   "The Aretakis constants and instability in general spherically symmetric extremal black hole spacetimes: higher multipole modes, late-time tails, and geometrical meanings",
   Phys.Rev.D.105.064062,2022,
   arXiv:2112.09832 [gr-qc].

10. Yasuyuki Hatsuda, Masashi Kimura,
    "Spectral Problems for Quasinormal Modes of Black Holes" [review paper],
    Universe 2021, 7(12), 476,
    arXiv:2111.15197 [gr-qc],
    This is a contribution to the special issue "Black Hole Physics and Beyond: From the Ringdown Analysis with Gravitational Waves".

11. Masashi Kimura, Tomohiro Harada, Atsushi Naruko, Kenji Toma,
    "Backreaction of Mass and Angular Momentum Accretion on Black Holes: General Formulation of the Metric Perturbations and Application to the Blandford-Znajek Process",
    Prog.Theor.Exp.Phys.2021,093E03,
    arXiv:2105.05581 [gr-qc].

12. Takuya Katagiri, Masashi Kimura,
    "Revisiting the Aretakis constants and instability in two-dimensional Anti-de Sitter spacetimes",
    Phys.Rev.D.103.064011,2021,
    arXiv:2101.03479 [gr-qc].

13. Keisuke Nakashi, Masashi Kimura,
    "Towards rotating non-circular black holes in string-inspired gravity",
    Phys.Rev.D.102.084021,2020,
    arXiv:2008.04003 [gr-qc].

14. Yasuyuki Hatsuda, Masashi Kimura,
    "Semi-analytic expressions for quasinormal modes of slowly rotating Kerr black holes",
    Phys.Rev.D.102.044032,2020,
    arXiv:2006.15496 [gr-qc].

15. Masashi Kimura,
    "Note on the parametrized black hole quasinormal ringdown formalism",
    Phys.Rev.D.101.064031,2020,
    arXiv:2001.09613 [gr-qc].

16. Vitor Cardoso, Adrian del Rio, Masashi Kimura,
    "Distinguishing black holes from horizonless objects through the excitation of resonances during inspiral",
    Phys.Rev.D.100.084046,2019,
    arXiv:1907.01561 [gr-qc].

17. Ryan McManus, Emanuele Berti, Caio F. B. Macedo, Masashi Kimura, Andrea Maselli, Vitor Cardoso,
    "Parametrized black hole quasinormal ringdown II: Coupled equations and quadratic corrections for nonrotating black holes",
    Phys.Rev.D.100.044061,2019,
    arXiv:1906.05155 [gr-qc].

18. Vitor Cardoso, Masashi Kimura, Andrea Maselli, Emanuele Berti, Caio F. B. Macedo, Ryan McManus,
    "Parametrized black hole quasinormal ringdown I: Decoupled equations for nonrotating black holes",
    Phys.Rev.D.99,104077,2019,
    arXiv:1901.01265 [gr-qc].

19. Masashi Kimura, Takahiro Tanaka,
    "Stability analysis of black holes by the S-deformation method for coupled systems",
    Class.Quant.Grav.36:055005,2019,
    arXiv:1809.00795 [gr-qc].

20. Vitor Cardoso, Masashi Kimura, Andrea Maselli, Leonardo Senatore,
    "Black holes in an Effective Field Theory extension of GR",
    Phys.Rev.Lett.121.251105,2018,
    arXiv:1808.08962 [gr-qc],
    see also https://centra.tecnico.ulisboa.pt/network/grit/news/?id=5271.

21. Masashi Kimura,
    "Stability analysis of Schwarzschild black holes in dynamical Chern-Simons gravity",
    Phys.Rev.D.98,024048,2018,
    arXiv:1807.05029 [gr-qc].

22. Leor Barack et al, [including Masashi Kimura],
    "Black holes, gravitational waves and fundamental physics: a roadmap" [review paper],
    Class.Quant.Grav.36:143001,2019,
    arXiv:1806.05195 [gr-qc],
    selected as "Classical and Quantum Gravity Highlights 2019-20."

23. Masashi Kimura, Takahiro Tanaka,
    "Robustness of S-deformation method for black hole stability analysis",
    Class.Quant.Grav.35:195008,2018,
    arXiv:1805.08625 [gr-qc].

24. Vitor Cardoso, Tsuyoshi Houri, Masashi Kimura,
    "General first-order mass ladder operators for Klein-Gordon fields",
    Class.Quant.Grav.35:015011,2017,
    arXiv:1707.08534 [hep-th].

25. Vitor Cardoso, Tsuyoshi Houri, Masashi Kimura,
    "Mass Ladder Operators from Spacetime Conformal Symmetry",
    Phys.Rev.D.96,024044,2017,
    arXiv:1706.07339 [hep-th].

26. Masashi Kimura,
    "A simple test for stability of black hole by S-deformation",
    Class.Quant.Grav.34:235007,2017,
    arXiv:1706.01447 [gr-qc].

27. Takeshi Chiba, Masashi Kimura,
    "A Note on Geodesics in Hayward Metric",
    Prog.Theor.Exp.Phys.2017,043E01,
    arXiv:1701.04910 [gr-qc].

28. Hideki Ishihara, Masashi Kimura, Ken Matsuno,
    "Charged black strings in a five-dimensional Kasner universe",
    Phys.Rev.D.93,024037,2016,
    arXiv:1511.01913 [hep-th].

29. Mandar Patil, Tomohiro Harada, Ken-ichi Nakao, Pankaj S. Joshi, and Masashi Kimura,
    "Infinite efficiency of the collisional Penrose process: Can a overspinning Kerr geometry be the source of ultrahigh-energy cosmic rays and neutrinos?",
    Phys.Rev.D.93,104015,2016,
    arXiv:1510.08205 [gr-qc].

30. Ken Matsuno, Hideki Ishihara and Masashi Kimura,
    "A pair of extremal charged black holes on Kerr-Taub-bolt space",
    Class.Quant.Grav.32:215008,2015,
    arXiv:1504.04203 [hep-th].

31. Mandar Patil, Pankaj S. Joshi, Ken-ichi Nakao, Masashi Kimura, Tomohiro Harada,
    "Timescale for trans-Planckian collisions in Kerr spacetime,"
    EPL(Europhysics Letters),110(2015),30004,
    arXiv:1503.08331 [gr-qc].

32. Tomohiro Harada and Masashi Kimura,
    "Black holes as particle accelerators: a brief review" [review paper],
    Class.Quant.Grav.31:243001,2014,
    arXiv:1409.7502 [gr-qc]. 

33. Ryo Shiose, Masashi Kimura and Takeshi Chiba,
    "Motion of Charged Particles around a Weakly Magnetized Rotating Black Hole."
    Phys.Rev.D.90,124016,2014,
    arXiv:1409.3310 [gr-qc].

34. Yuki Kanou, Hideki Ishihara, Masashi Kimura, Ken Matsuno and Takamitsu Tatsuoka,
    "Charged Black Holes in a Five-dimensional Kaluza-Klein Universe,"
    Phys.Rev.D.90,084004,2014,
    arXiv:1408.2956 [hep-th].

35. Masashi Kimura, Hideki Ishihara, Ken Matsuno and Takahiro Tanaka,
    "A simple diagnosis of non-smoothness of black hole horizon: Curvature singularity at horizons in extremal Kaluza-Klein black holes,"
    Class.Quant.Grav.32:015005,2015,
    arXiv:1407.6224 [gr-qc].

36. Ken-ichi Nakao, Masashi Kimura, Tomohiro Harada, Mandar Patil, Pankaj S. Joshi,
    "How small can an over-spinning body be in general relativity?"
    Phys.Rev.D.90.124079,2014,
    arXiv:1406.6798 [gr-qc].

37. Naoki Tsukamoto, Masashi Kimura, Tomohiro Harada,
    "High Energy Collision of Particles in the Vicinity of Extremal Black Holes in Higher Dimensions: Banados-Silk-West Process as Linear Instability of Extremal Black Holes,"
    Phys.Rev.D.89.024020,2014,
    arXiv:1310.5716 [gr-qc].

38. Ken-ichi Nakao, Masashi Kimura, Mandar Patil, Pankaj S. Joshi,
    "Ultra-high energy collision with neither black hole nor naked singularity,"
    Phys.Rev.D.87.104033,2013,
    arXiv:1301.4618 [gr-qc].

39. Ken Matsuno, Hideki Ishihara, Masashi Kimura, Takamitsu Tatsuoka,
    "Charged rotating Kaluza-Klein multi-black holes and multi-black strings in five-dimensional Einstein-Maxwell theory, "
    Phys.Rev.D.86.104054,2012,
    arXiv:1208.5536 [hep-th].

40. Ken Matsuno, Hideki Ishihara, Masashi Kimura, Takamitsu Tatsuoka,
    "Kaluza-Klein vacuum multi-black holes in five-dimensions,"
    Phys.Rev.D.86.044036,2012,
    arXiv:1206.4818 [hep-th].

41. Takahisa Igata, Tomohiro Harada, Masashi Kimura,
    "Effect of a Weak Electromagnetic Field on Particle Acceleration by a Rotating Black Hole,"
    Phys.Rev.D.85.104028,2012,
    arXiv:1202.4859 [gr-qc].

42. Takamitsu Tatsuoka, Hideki Ishihara, Masashi Kimura, Ken Matsuno,
    "Extremal Charged Black Holes with a Twisted Extra Dimension,"
    Phys.Rev.D.85.044006,2012,
    arXiv:1110.6731 [hep-th].

43. Tomohiro Harada, Masashi Kimura,
    "Collision of an object in the transition from adiabatic inspiral to plunge around a Kerr black hole,"
    Phys.Rev.D.84.124032,2011,
    arXiv:1109.6722 [gr-qc].

44. Mandar Patil, Pankaj S. Joshi, Masashi Kimura, Ken-ichi Nakao,
    "Acceleration of particles and shells by Reissner-Nordstrom naked singularities,"
    Phys.Rev.D.86.084023,2012,
    arXiv:1108.0288 [gr-qc].

45. Tomohiro Harada, Masashi Kimura,
    "Collision of two general geodesic particles around a Kerr black hole,"
    Phys.Rev.D.83.084041,2011,
    arXiv:1102.3316 [gr-qc].

46. Masashi Kimura, Ken-ichi Nakao and Hideyuki Tagoshi,
    "Acceleration of colliding shells around a black hole: Validity of the test particle approximation in the Banados-Silk-West process,"
    Phys.Rev.D.83.044013,2011,
    arXiv:1010.5438 [gr-qc].

47. Yohsuke Takamori, Ken-ichi Nakao, Hideki Ishihara, Masashi Kimura and Chul-Moon Yoo,
    "Perturbative Analysis of a Stationary Magnetosphere in an Extreme Black Hole Spacetime : On the Meissner-like Effect of an Extreme Black Hole,"
    Mon.Not.R.Astron.Soc.412,2417,2011,
    arXiv:1010.4104 [gr-qc].

48. Tomohiro Harada, Masashi Kimura,
    "Collision of an innermost stable circular orbit particle around a Kerr black hole,"
    Phys.Rev.D83.024002,2011,
    arXiv:1010.0962 [gr-qc].

49. Ryusuke Nishikawa, Masashi Kimura,
    "Stability analysis of squashed Kaluza-Klein black holes with charge,"
    Class.Quant.Grav.27:215020,2010,
    arXiv:1005.1367 [hep-th].

50. Masashi Kimura, Hideki Ishihara, Shinya Tomizawa, Chul-Moon Yoo,
    "Topology Changing Process of Coalescing Black Holes on Eguchi-Hanson Space,"
    Phys.Rev.D80.064030,2009,
    arXiv:0906.4681 [gr-qc].

51. Chul-Moon Yoo, Hideki Ishihara, Masashi Kimura, Sugure Tanzawa,
    "Hoop Conjecture and the Horizon Formation Cross-Section in Kaluza-Klein Spacetimes,"
    Phys.Rev.D81.024020,2010,
    arXiv:0906.0689 [gr-qc].

52. Masashi Kimura,
    "Dynamical Black Rings with a Positive Cosmological Constant,"
    Phys.Rev.D80:044012,2009,
    arXiv:0904.4311 [gr-qc].

53. Sugumi Kanno, Masashi Kimura, Jiro Soda, Shuichiro Yokoyama,
    "Anisotropic Inflation from Vector Impurity,"
    JCAP08(2008)034,
    arXiv:0806.2422 [hep-ph].

54. Masashi Kimura,
    "Analyticity of Event Horizons of Five-Dimensional Multi-Black Holes with Non-Trivial Asymptotic Structure,"
    Phys.Rev.D78:047504,2008,
    arXiv:0805.1125 [gr-qc].

55. Hideki Ishihara, Masashi Kimura, Roman A. Konoplya, Keiju Murata, Jiro Soda and Alexander Zhidenko,
    "Evolution of perturbations of squashed Kaluza-Klein black holes: escape from instability,"
    Phys.Rev.D77:084019,2008,
    arXiv:0802.0655 [hep-th].

56. Masashi Kimura, Keiju Murata, Hideki Ishihara and Jiro Soda,
    "Stability of Squashed Kaluza-Klein Black Holes,"
    Phys.Rev.D77:064015,2008,
    arXiv:0712.4202 [hep-th].

57. Chul-Moon Yoo, Hideki Ishihara, Masashi Kimura, Ken Matsuno and Shinya Tomizawa,
    "Horizons of Coalescing Black Holes on Eguchi-Hanson Space,"
    Class.Quant.Grav.25:095017,2008,
    arXiv:0708.0708 [gr-qc].

58. Ken Matsuno, Hideki Ishihara, Masashi Kimura and Shinya Tomizawa,
    "Coalescence of Rotating Black Holes on Eguchi-Hanson Space,"
    Phys.Rev.D76:104037,2007,
    arXiv:0707.1757 [hep-th].

59. Shinya Tomizawa, Hideki Ishihara, Masashi Kimura and Ken Matsuno,
    "Supersymmetric black rings on Eguchi-Hanson space,"
    Class.Quant.Grav.24:5609-5626,2007,
    arXiv:0705.1098 [hep-th].

60. Daisuke Ida, Hideki Ishihara, Masashi Kimura, Ken Matsuno, Yoshiyuki Morisawa and Shinya Tomizawa,
    "Cosmological black holes on Taub-NUT space in five-dimensional Einstein-Maxwell theory,"
    Class.Quant.Grav.24:3141-3150,2007,
    arXiv:hep-th/0702148.

61. Hideki Ishihara, Masashi Kimura and Shinya Tomizawa,
    "Topology Change of Coalescing Black Holes on Eguchi-Hanson Space,"
    Class.Quant.Grav.23:L89,2006,
    arXiv:hep-th/0609165,
    selected as "Classical and Quantum Gravity Research Highlights of 2006/2007."

62. Hideki Ishihara, Masashi Kimura, Ken Matsuno and Shinya Tomizawa,
    "Black Holes on Eguchi-Hanson Space in Five-Dimensional Einstein-Maxwell Theory,"
    Phys.Rev.D74:047501,2006,
    arXiv:hep-th/0607035.

63. Hideki Ishihara, Masashi Kimura, Ken Matsuno and Shinya Tomizawa,
    "Kaluza-Klein Multi-Black Holes in Five-Dimensional Einstein-Maxwell Theory,"
    Class.Quant.Grav.23:6919-6926,2006,
    arXiv:hep-th/0605030,
    selected as "Classical and Quantum Gravity Research Highlights of 2006/2007."

INSPIRE publication list

INSPIRE 

Reviews [written in Japanese]

1. Tomohiro Harada and Masashi Kimura,
   "Do black holes act as natural particle accelerators?"
   BUTSURI(The Physical Society of Japan),Vol68,No.2,2013,pp102,
   [日本物理学会誌 2013年2月号 pp102-106],
   →pdf file.

Award

1. OCAMI (Osaka City University Advanced Mathematical Institute) Association Special Prize (Mar, 2017).

2. EPL(Europhysics Letters) awards for the best presentation at the Asia Pacific School/Workshop (Feb, 2013).

Link

・Rikkyo University >> Institute of Theoretical Physics
・Universidade de Lisboa (University of Lisbon) >> Instituto Superior Tecnico >> CENTRA >> Gravitation in Tecnico (GRIT) group .
・University of Cambridge >> DAMTP >> DAMTP Relativity & Gravitation Group, Centre for Theoretical Cosmology(CTC)
・Kyoto University >> Yukawa Institute for Theoretical Physics
・Osaka City University >> Department of Physics >> Research Group for Theoretical Astrophysics