ATSUSHI NISHIZAWA

Last Updated :2026/07/03

Affiliations, Positions
Graduate School of Advanced Science and Engineering, Associate Professor
E-mail
atnishihiroshima-u.ac.jp

Basic Information

Educational Backgrounds

  • Kyoto University, Graduate School, Division of Human and Environmental Studies, 2004/04, 2009/03

Academic Degrees

  • Ph.D. in Human-Environment Studies, Kyoto University
  • Master's Degree in Human-Environment Studies, Kyoto University

In Charge of Primary Major Programs

  • Physics

Research Fields

  • Mathematical and physical sciences;Physics;Particle / Nuclear / Cosmic ray / Astro physics

Research Keywords

  • Test of gravity theory
  • Cosmology
  • Gravitational waves

Affiliated Academic Societies

  • The Physical Society of Japan
  • The Astronomical Society of Japan

Educational Activity

Course in Charge

  1. 2026, Undergraduate Education, First Semester, Exercises in Electromagnetism
  2. 2026, Undergraduate Education, Second Semester, Special Lectures in Physics (General Relativity)
  3. 2026, Graduate Education (Master's Program) , First Semester, Exercise in Physics I
  4. 2026, Graduate Education (Master's Program) , Second Semester, Exercise in Physics II
  5. 2026, Graduate Education (Master's Program) , First Semester, Special Exsecise in Physics A
  6. 2026, Graduate Education (Master's Program) , Second Semester, Special Exsecise in Physics B
  7. 2026, Graduate Education (Master's Program) , Year, Special Research in Physics

Research Activities

Academic Papers

  1. Searching for dark photon dark matter from terrestrial magnetic fields, Physical Review D, 113(10), 202605
    Link to Paper Search Results by DOI
  2. Observational constraints on the nonlinear regime of gravity with a parametrized beyond-GR gravitational waveform model, Physical Review D, 113(2), 202601
    Link to Paper Search Results by DOI
  3. Black Hole Spectroscopy and Tests of General Relativity with GW250114, Physical Review Letters, 136(4), 202601
    Link to Paper Search Results by DOI
  4. GWTC-4.0: An Introduction to Version 4.0 of the Gravitational-Wave Transient Catalog, The Astrophysical Journal Letters, 995(1), 202512
    Link to Paper Search Results by DOI
  5. GW241011 and GW241110: Exploring Binary Formation and Fundamental Physics with Asymmetric, High-spin Black Hole Coalescences, The Astrophysical Journal Letters, 993(1), 202511
    Link to Paper Search Results by DOI
  6. GW231123: A Binary Black Hole Merger with Total Mass 190-265 M⊙, The Astrophysical Journal Letters, 993(1), 202511
    Link to Paper Search Results by DOI
  7. All-sky search for short gravitational-wave bursts in the first part of the fourth LIGO-Virgo-KAGRA observing run, Physical Review D, 112(10), 202511
    Link to Paper Search Results by DOI
  8. Hunting Axion Dark Matter Signatures in Low-Frequency Terrestrial Magnetic Fields, Progress of Theoretical and Experimental Physics, 2025(11), 202511
    Link to Paper Search Results by DOI
  9. Proof-of-principle experiment on a displacement-noise-free neutron interferometer for gravitational wave detection, Physical Review D, 112(10), 202511
    Link to Paper Search Results by DOI
  10. Tests of general relativity with GWTC-3, Physical Review D, 112, 084080, 202510
  11. GW250114: Testing Hawking's Area Law and the Kerr Nature of Black Holes, Physical Review Letters, 135(11), 202509
    Link to Paper Search Results by DOI
  12. Identification of Noise-Associated Glitches in KAGRA O3GK with Hierarchical Veto, Progress of Theoretical and Experimental Physics, 2025(8), 202508
    Link to Paper Search Results by DOI
  13. Statistical biases in parametrized searches for gravitational-wave polarizations, Physical Review D, 112(2), 202507
    Link to Paper Search Results by DOI
  14. Search for Gravitational Waves Emitted from SN2023ixf, The Astrophysical Journal, 985, 183, 202506
  15. Search for Continuous Gravitational Waves from Known Pulsars in the First Part of the Fourth LIGO-Virgo-KAGRA Observing Run, The Astrophysical Journal, 983, 99, 202504
  16. Swift-BAT GUANO Follow-up of Gravitational-wave Triggers in the Third LIGO–Virgo–KAGRA Observing Run, The Astrophysical Journal, 980, 207, 202502
  17. A Search Using GEO600 for Gravitational Waves Coincident with Fast Radio Bursts from SGR 1935+2154, The Astrophysical Journal, 977, 255, 202412
    Link to Paper Search Results by DOI
  18. Search for Eccentric Black Hole Coalescences during the Third Observing Run of LIGO and Virgo, The Astrophysical Journal, 973, 132, 202410
  19. Observation of Gravitational Waves from the Coalescence of a 2.5-4.5 M⊙ Compact Object and a Neutron Star, The Astrophysical Journal Letters, 970, 132, 202408
    Link to Paper Search Results by DOI
  20. Ultralight vector dark matter search using data from the KAGRA O3GK run, Physical Review D, 110, 042001, 202408
  21. Search for Gravitational-lensing Signatures in the Full Third Observing Run of the LIGO-Virgo Network, The Astrophysical Journal, 970, 191, 202408
  22. Sagnac-type neutron displacement-noise-free interferometeric gravitational-wave detector, Classical and Quantum Gravity, 41, 117002, 202406
  23. Search for Gravitational-wave Transients Associated with Magnetar Bursts in Advanced LIGO and Advanced Virgo Data from the Third Observing Run, The Astrophysical Journal, 966, 137, 202405
  24. Gravitational-wave constraints on scalar-tensor gravity from a neutron star and black-hole binary GW200115, Physical Review D, 109, 104072, 202405
    Link to Paper Search Results by DOI
  25. Physically consistent gravitational waveform for capturing beyond general relativity effects in the compact object merger phase, Physical Review D, 109, 084058, 202404
    Link to Paper Search Results by DOI
  26. A Joint Fermi-GBM and Swift-BAT Analysis of Gravitational-wave Candidates from the Third Gravitational-wave Observing Run, The Astrophysical Journal, 964, 149, 202404
  27. GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo during the Second Part of the Third Observing Run, Physical Review X, 13, 041039, 202312
  28. Search for Gravitational Waves Associated with Fast Radio Bursts Detected by CHIME/ FRB during the LIGO–Virgo Observing Run O3a, The Astrophysical Journal, 955, 155, 202310
  29. First results of axion dark matter search with DANCE, Physical Review D, 108, 072005, 202310
  30. Performance of the KAGRA detector during the first joint observation with GEO 600 (O3GK), Progress of Theoretical and Experimental Physics, 2023, 10A101, 202310
  31. Gravitational wave physics and astronomy in the nascent era, Progress of Theoretical and Experimental Physics, 2023, 10A103, 202310
  32. Overview of KAGRA : Data transfer and management, Progress of Theoretical and Experimental Physics, 2023, 10A102, 202309
  33. Circular Polarization of the Astrophysical Gravitational Wave Background, Physical Review Letters, 131, 041401, 202307
  34. Constraints on the Cosmic Expansion History from GWTC–3, The Astrophysical Journal, 949, 76, 202306
  35. Observational constraint on axion dark matter in a realistic halo profile with gravitational waves, Physical Review D, 107, 103516, 202305
  36. Distinguishing a stochastic gravitational-wave signal from correlated noise with joint parameter estimation: Fisher analysis for ground-based detectors, Physical Review D, 107, 064055, 202303
  37. Noise subtraction from KAGRA O3GK data using Independent Component Analysis, Classical and Quantum Gravity, 40, 085015, 202303
  38. Population of Merging Compact Binaries Inferred Using Gravitational Waves through GWTC-3, Physical Review X, 13, 011048, 202303
  39. Search for subsolar-mass black hole binaries in the second part of Advanced LIGO's and Advanced Virgo's third observing run, Monthly Notices of the Royal Astronomical Society, 524, 5984, 202302
  40. Displacement-noise-free interferometeric gravitational-wave detector using unidirectional neutrons with four speeds, Physics Letters A, 458, 128581, 202301
  41. Input optics systems of the KAGRA detector during O3GK, Progress of Theoretical and Experimental Physics, 2023, 023F01, 202212
  42. Model-based Cross-correlation Search for Gravitational Waves from the Low-mass X-Ray Binary Scorpius X-1 in LIGO O3 Data, The Astrophysical Journal Letters, 941, L30, 202212
  43. All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO and Advanced Virgo O3 data, Physical Review D, 106, 102008, 202211
  44. Observational constraint on axion dark matter with gravitational waves, Physical Review D, 106, L081301, 202210
  45. Search for gravitational waves from Scorpius X-1 with a hidden Markov model in O3 LIGO data, Physical Review D, 106, 062002, 202209
  46. Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO-Virgo data, Physical Review D, 106, 042003, 202208
  47. Searches for Gravitational Waves from Known Pulsars at Two Harmonics in the Second and Third LIGO-Virgo Observing Runs, The Astrophysical Journal, 935, 1, 202208
  48. Narrowband Searches for Continuous and Long-duration Transient Gravitational Waves from Known Pulsars in the LIGO-Virgo Third Observing Run, The Astrophysical Journal, 932, 133, 202206
  49. All-sky, all-frequency directional search for persistent gravitational waves from Advanced LIGO's and Advanced Virgo's first three observing runs, Physical Review D, 105, 122001, 202206
  50. Performanceof theKAGRAdetectorduringthefirst joint observation with GEO600 (O3GK), Progress of Theoretical and Experimental Physics, 2023, 10A101, 202206
  51. Neutron displacement noise-free interferometer for gravitational-wave detection, Physical Review D, 105, 124017, 202206
  52. All-sky search for gravitational wave emission from scalar boson clouds around spinning black holes in LIGO O3 data, Physical Review D, 105, 102001, 202205
  53. First joint observation by the underground gravitational-wave detector KAGRA with GEO 600, Prog. Theor. Exp. Phys., 2022, 063F01, 202204
  54. Search for Gravitational Waves Associated with Gamma-Ray Bursts Detected by Fermi and Swift during the LIGO–Virgo Run O3b, The Astrophysical Journal, 928, 186, 202204
  55. Search for scalar-tensor mixed polarization modes of gravitational waves, Physical Review D, 105, 084019, 202204
  56. Displacement-noise-free neutron interferometer for gravitational wave detection using a single Mach-Zehnder configuration, Physics Letters A, 441, 128150, 202204
  57. The Current Status and Future Prospects of KAGRA, the Large-Scale Cryogenic Gravitational Wave Telescope Built in the Kamioka Underground, Galaxies, 10, 63, 202204
  58. Constraints on dark photon dark matter using data from LIGO's and Virgo's third observing run, Physical Review D, 105, 063030, 202203
  59. Early warning of precessing neutron-star black-hole binary mergers with the near-future gravitational- wave detectors, Monthly Notices of the Royal Astronomical Society, 512, 3878, 202203
  60. Search for intermediate-mass black hole binaries in the third observing run of Advanced LIGO and Advanced Virgo, Astronomy & Astrophysics, 659, A84, 202203
  61. First observation and analysis of DANCE: Dark matter Axion search with riNg Cavity Experiment, Journal of Physics Conference Series, 2156, 202202
  62. Ultralight dark matter searches with KAGRA gravitational wave telescope, Journal of Physics Conference Series, 2156, 202202
  63. Search for continuous gravitational waves from 20 accreting millisecond x-ray pulsars in O3 LIGO data, Physical Review D, 105, 022002, 202201
  64. All-sky search for short gravitational-wave bursts in the third Advanced LIGO and Advanced Virgo run, Physical Review D, 104, 122004, 202112
  65. All-sky search for long-duration gravitational-wave bursts in the third Advanced LIGO and Advanced Virgo run, Physical Review D, 104, 102001, 202111
  66. Constraints from LIGO O3 Data on Gravitational-wave Emission Due to R-modes in the Glitching Pulsar PSR J0537–6910, The Astrophysical Journal, 922, 71, 202111
  67. Searches for Continuous Gravitational Waves from Young Supernova Remnants in the Early Third Observing Run of Advanced LIGO and Virgo, The Astrophysical Journal, 921, 80, 202111
  68. All-sky search for continuous gravitational waves from isolated neutron stars in the early O3 LIGO data, Physical Review D, 104, 082004, 202110
  69. Early warning of precessing compact binary merger with third-generation gravitational-wave detectors, Physical Review D, 104, 064013, 202109
  70. Impacts of overlapping gravitational-wave signals on the parameter estimation: Toward the search for cosmological backgrounds, Physical Review D, 104, 044010, 202108
  71. Upper limits on the isotropic gravitational-wave background from Advanced LIGO and Advanced Virgo's third observing run, Physical Review D, 104, 022004, 202107
  72. Search for anisotropic gravitational-wave backgrounds using data from Advanced LIGO and Advanced Virgo's first three observing runs, Physical Review D, 104, 022005, 202107
  73. Observation of Gravitational Waves from Two Neutron Star-Black Hole Coalescences, The Astrophysical Journal Letters, 915, L5, 202107
  74. Reduction of quantum noise using the quantum locking with an optical spring for gravitational wave detectors, Physics Letters A, 402, 127365, 202106
  75. Diving below the Spin-down Limit: Constraints on Gravitational Waves from the Energetic Young Pulsar PSR J0537-6910, The Astrophysical Journal Letters, 913, L27, 202106
  76. Constraints on Cosmic Strings Using Data from the Third Advanced LIGO–Virgo Observing Run, Physical Review Letters, 126, 241102, 202106
  77. Diving below the Spin-down Limit: Constraints on Gravitational Waves from the Energetic Young Pulsar PSR J0537-6910, Astrophysical Journal Letters, 913, L27, 202106
  78. Current status of space gravitational wave antenna DECIGO and B-DECIGO, Progress of Theoretical and Experimental Physics, 2021, 05A105, 202105
  79. Vibration isolation systems for the beam splitter and signal recycling mirrors of the KAGRA gravitational wave detector, Classical and Quantum Gravity, 38, 065011, 202103
  80. Overview of KAGRA: Calibration, detector characterization, physical environmental monitors, and the geophysics interferometer, Progress of Theoretical and Experimental Physics, 2021, 05A102, 202102
  81. An Early-warning System for Electromagnetic Follow-up of Gravitational-wave Events, The Astrophysical Journal Letters, 905, L25, 202012
  82. Prospects for observing and localizing gravitational-wave transients with Advanced LIGO, Advanced Virgo and KAGRA, Living Reviews in Relativity, 23, 3, 202012
  83. Pure polarization test of GW170814 and GW170817 using waveforms consistent with modified theories of gravity, Physical Review D, 103, 064037, 202010
  84. Optimization of quantum noise by completing the square of multiple interferometer outputs in quantum locking for gravitational wave detectors, Physics Letters A, 384, 126626, 202009
  85. Overview of KAGRA: KAGRA science, Progress of Theoretical and Experimental Physics, 2020, 05A103, 202008
  86. Overview of KAGRA: Detector design and construction history, Progress of Theoretical and Experimental Physics, 2020, 05A101, 202008
  87. Prospects for improving the sensitivity of the cryogenic gravitational wave detector KAGRA, Physical Review D, 102, 022008, 202007
  88. Cosmological evolution of viable models in the generalized scalar-tensor theory, Physical Review D, 102, 024003, 202007
  89. Application of independent component analysis to the iKAGRA data, Progress of Theoretical and Experimental Physics, 2020, 053F01, 202005
  90. An arm length stabilization system for KAGRA and future gravitational-wave detectors, Classical and Quantum Gravity, 37, 035004, 202001
  91. Constraining extra gravitational wave polarizations with Advanced LIGO, Advanced Virgo, and KAGRA and upper bounds from GW170817, Physical Review D, 100, 064010, 201909
  92. Convergence of Fourier-domain templates for inspiraling eccentric compact binaries, Physical Review D, 100, 064006, 201909
  93. Space gravitational-wave antennas DECIGO and B-DECIGO, International Journal of Modern Physics D, 28, 1845001, 201909
  94. First cryogenic test operation of underground km-scale gravitational-wave observatory KAGRA, Classical and Quantum Gravity, 36(16), 165008-165008, 201908
  95. Prospects for gravitational-wave polarization tests from compact binary mergers with future ground-based detectors, Physical Review D, 100, 042001, 201908
  96. Generalized framework for testing gravity with gravitational-wave propagation. III. Future prospect, Physical Review D, 99, 104038, 201905
  97. Vibration isolation system with a compact damping system for power recycling mirrors of KAGRA, Classical and Quantum Gravity, 36(9), 095015-095015, 201905
  98. KAGRA: 2.5 generation interferometric gravitational wave detector, Nature Astronomy, 3, 35, 201901
  99. Parity-violating gravity and GW170817, Physical Review D, 98, 124018, 201812
  100. Polarization test of gravitational waves from compact binary coalescences, Physical Review D, 98, 022008, 201807
  101. Particle swarm optimization of the sensitivity of a cryogenic gravitational wave detector, Physical Review D, 97, 122003, 201806
  102. ★, Generalized framework for testing gravity with gravitational-wave propagation. II. Constraints on Horndeski theory, Physical Review D, 97, 104038, 201805
  103. ★, Generalized framework for testing gravity with gravitational-wave propagation. I. Formulation, Physical Review D, 97, 104037, 201805
  104. Measurement of Hubble constant with stellar-mass binary black holes, Physical Review D, 96, 101303(R), 201711
  105. The status of DECIGO, Journal of Physics Conference Series, 840, 012010, 201706
  106. Testing gravity with pulsar scintillation measurements, Physical Review D, 95, 084049, 201704
  107. Constraining stellar binary black hole formation scenarios with eLISA eccentricity measurements, Monthly Notices of the Royal Astronomical Society, 465, 4375, 201703
  108. Gravitational wave memory: A new approach to study modified gravity, Physical Review D, 94, 104063, 201611
  109. eLISA eccentricity measurements as tracers of binary black hole formation, Physical Review D, 94, 064020, 201609
  110. Detecting black-hole binary clustering via the second-generation gravitational-wave detectors, Physical Review D, 94, 024013, 201607
  111. Constraining the propagation speed of gravitational waves with compact binaries at cosmological distances, Physical Review D, 93, 124036, 201606
  112. Measurement of Schumann Resonance at Kamioka, Journal of Physics Conference Series, 716(1), 201606
  113. Measuring Gravitational-Wave Propagation Speed with Multimessenger Observations, Journal of Physics Conference Series, 716(1), 201606
  114. Anisotropies of Gravitational-Wave Standard Sirens as a New Cosmological Probe without Redshift Information, Physical Review Letters, 116, 121302, 201603
  115. Weak-value amplification beyond the standard quantum limit in position measurements, Physical Review A, 92, 032123, 201509
  116. Search for an emission line of a gravitational wave background, Physical Review D, 91, 122001, 201506
  117. Gravitational waves: search results, data analysis and parameter estimation: Amaldi 10 Parallel session C2, General Relativity and Gravitation, 47, 11, 201502
  118. ★, Measuring speed of gravitational waves by observations of photons and neutrinos from compact binary mergers and supernovae, Physical Review D, 90, 044048, 201408
  119. Constraint on reheating after f(R) inflation from gravitational waves, Physical Review D, 89, 063541, 201403
  120. Probing for massive stochastic gravitational-wave background with a detector network, Physical Review D, 88, 064005, 201309
  121. ★, Beyond concordance cosmology with magnification of gravitational-wave standard sirens, Physical Review Letters, 110, 151103, 201304
  122. Model-independent test of gravity with a network of ground-based gravitational-wave detectors, Physical Review D, 87, 062003, 201303
  123. Reheating after f(R) inflation, Physical Review D, 86, 083514, 201210
  124. Weak-value amplification in a shot-noise-limited interferometer, Physical Review A, 85, 062108, 201206
  125. Direct measurement of the positive acceleration of the universe and testing inhomogeneous models under gravitational wave cosmology, Journal of Cosmology and Astroparticle Physics, 2012(04), 031, 201204
  126. ★, Cosmology with space-based gravitational-wave detectors: Dark energy and primordial gravitational waves, Physical Review D, 85, 044047, 201202
  127. Evaluation of weak measurements to all orders, Physical Review A, 85, 012113, 201201
  128. Tracing the redshift evolution of Hubble parameter with gravitational-wave standard sirens, Physical Review D, 83, 084045, 201104
  129. Cosmological test of gravity with polarizations of stochastic gravitational waves around 0.1-1 Hz, Physical Review D, 81, 104043, 201005
  130. Measurement of angular antispring effect in optical cavity by radiation pressure, Physical Review D, 81, 064023, 201003
  131. Noise cancellation properties of displacement noise free interferometer, Journal of Physics Conference Series, 228, 012026, 201001
  132. Development of a Displacement- and Frequency-Noise-Free Interferometer in a 3D Configuration for Gravitational Wave Detection, Physical Review Letters, 103, 171101, 200910
  133. ★, Probing nontensorial polarizations of stochastic gravitational-wave backgrounds with ground-based laser interferometers, Physical Review D, 79, 082002, 200904
  134. Optimal location of two laser-interferometric detectors for gravitational wave backgrounds at 100 MHz, Classical and Quantum Gravity, 25, 225011, 200811
  135. Experimental investigation of a control scheme for a zero-detuning resonant sideband extraction interferometer for next-generation gravitational-wave detectors, Classical and Quantum Gravity, 25, 195008, 200810
  136. Search for a stochastic background of 100-MHz gravitational waves with laser interferometers, Physical Review Letters, 101, 101101, 200809
  137. Resonant speed meter for gravitational-wave detection, Physical Review Letters, 101, 081101, 200808
  138. Demonstration of displacement-noise-free interferometry using bi-directional Mach-Zehnder interferometers, Classical and Quantum Gravity, 25, 225011, 200806
  139. Laser-interferometric detectors for gravitational wave backgrounds at 100 MHz: Detector design and sensitivity, Physical Review D, 77, 022002, 200801
  140. Quantum noise in differential-type gravitational-wave interferometer and signal recycling, Journal of Physics Conference Series, 122, 012019, 200801
  141. A study for reduction of radiation pressure noise in gravitational wave detectors, Journal of Physics Conference Series, 122, 012020, 200801
  142. Development of a detector pair for very high frequency gravitational waves, Journal of Physics Conference Series, 122, 012007, 200801
  143. Experimental investigation of a control scheme for a tuned resonant sideband extraction interferometer for next-generation gravitational-wave detectors, Journal of Physics Conference Series, 122, 012017, 200801
  144. Displacement noise free interferometory for gravitational wave detection, Journal of Physics Conference Series, 120, 032006, 200801
  145. Quantum noise in differential-type gravitational-wave interferometer and signal recycling, Physical Review D, 76, 042002, 200708

Invited Lecture, Oral Presentation, Poster Presentation

  1. Pulsar Timing Array, A. Nishizawa, Frontiers of Cosmology: From the Early Universe to Observational Tensions (KEK Cosmo 2025), 2026/03/02, With Invitation, English, Tsukuba, Japan
  2. Cosmology and Hubble tension from Gravitational-Wave Observations, A. Nishizawa, Second International Conference on the Physics of the Two Infinities, 2025/11/17, With Invitation, English, Tokyo, Japan
  3. Hunting axion dark matter signatures in terrestrial magnetic fields, A. Nishizawa, Axion in Japan, 2025/11/12, With Invitation, English, Kashiwa, Japan
  4. Current status of gravitaional-wave cosmology, Atsushi Nishizawa, 14th Observational Cosmology Workshop, 2025/10/06, With Invitation, Japanese, Okayama-shi
  5. Subtracting gravitational-wave foregrounds utilizing anisotropic statistic, Atsushi Nishizawa, Soichiro Kuwahara, Lorenzo Valbusa Dall'Armi, The Physical Society of Japan Annual Meeting, 2025/09/16, Without Invitation, Japanese, Hiroshima University, Higashi-Hiroshima Campus
  6. Recent progress on GW cosmology, A. Nishizawa, The KAGRA International Workshop 12, 2025/05/26, With Invitation, English, Shanghai Astronomical Observatory, Shanghai, China
  7. Observational constraints on axion dark matter from GW propagation, A. Nishizawa, L. Valbusa Dall'Armi, T. Tsutsui, YITP long-term workshop: Gravity and Cosmology 2024, 2025/01/29, Without Invitation, English, Kyoto Univ., Kyoto, Japan
  8. Axion dark matter search from the terrestrial magnetic fields, A. Nishizawa, A. Taruya, Y. Himemoto, JGRG 33, 2024/12/02, Without Invitation, English, Kindai Univ., Osaka, Japan
  9. Searching for axion dark matter from ultra low frequency electromagnetic waves: observational constraint, Atsushi Nishizawa, Atsushi Taruya, Yoshiaki Himemoto, Japanese Physics Society Annual Meeting, 2024/09/16, Without Invitation, Japanese, Hokkaido Univ.
  10. Searching for axion dark matter from ultra low frequency EM waves, A. Nishizawa, A. Taruya, Y. Himemoto, New Physics from Gravitational Waves, 2024/08/05, Without Invitation, English, Kyoto Univ., Kyoto, Japan
  11. Observational constraints on axion dark matter from stochastic gravitational-wave searches, Atsushi Nishizawa, Lorenzo Valbusa Dall'Armi, Takuya Tsutsui, Japanese Physics Society Spring Meeting, 2024/03/18, Without Invitation, Japanese, Online
  12. Gravitational-wave projects in 2030's, Atsushi Nishizawa, TMT Information Exchange Meeting, 2024/02/27, With Invitation, Japanese, Hiroshima Univ., Higashi-Hiroshima campus
  13. Gravity gradient noise, Atsushi Nishizawa, Elementary Particles, the Universe, Gravity, and Quantum Sensing 1: Atomic Interferometers and Gravitational Wave Observation, 2024/01/22, Without Invitation, Japanese, Kyushu Univ., Ito campus
  14. When should we follow-up binary black-hole mergers?, A. Nishizawa, Transformative Research Areas (A): The creation of multi-messenger astrophysics, The first Annual Area Symposium, 2023/12/04, Without Invitation, English, Gero, Gifu, Japan
  15. Stochastic gravitational wave background from axion dark matter, A. Nishizawa, L. Valbusa Dall'Armi, T. Tsutsui, One-day workshop: "Search for new particles using gravitational waves (SNPGW)", 2023/12/02, Without Invitation, English, Nagoya Univ., Nagoya, Japan
  16. Current status of testing gravity with gravitational waves, Atsushi Nishizawa, Japanese Physics Society Annual Meeting, 2023/09/16, With Invitation, Japanese, Tohoku Univ., Aobayama campus
  17. Circular Polarizations of the Astrophysical Gravitational Wave Background, A. Nishizawa, Black Hole and Gravitational Waves: from modified theories of gravity to data analyses, 2023/09/04, Without Invitation, English, APCTP, Pohang, Korea

Social Activities

Organizing Academic Conferences, etc.

  1. Japan Gravitational-Wave Community (JGWC) 2026 年研究会, Organizer, 2026/05
  2. The 34th Workshop on General Relativity and Gravitation in Japan (JGRG34), Organizer, 2026/01
  3. 素粒子・宇宙・重力と量子センシング 第3回「巨視的量子現象と重力」, Organizer, 2025/10
  4. New Physics from Gravitational Waves 2025, Organizer, 2025/09
  5. The Physical Society of Japan Annual Meeting, Organizer, 2025/09
  6. 竹原重力・宇宙論研究会, Organizer, 2025/07
  7. Gravitational waves Related workshop in Western Japan, Organizer, 2025/03
  8. 素粒子・宇宙・重力と量子センシング　第2回「多波長重力波観測と暗黒物質探索」, Organizer, 2024/10
  9. KAGRA Instrument Science White Paper Writing Workshop 2024, Organizer, 2024/10
  10. New Physics from Gravitational Waves, Organizer, 2024/08
  11. 素粒子・宇宙・重力と量子センシング　第1回「原子干渉計と重力波観測」, Organizer, 2024/01
  12. New Physics from Gravitational Waves: One-day Workshop after JGRG, Organizer, 2023/12
  13. APCTP Workshop: Black Hole and Gravitational Waves, from modified theories of gravity to data analyses, Organizer, 2023/09