ACHIVEMENT 

since Nobember 15, 2018

Paper   /    Presentations   /     Book & Article   /    Prize

Paper

2023 papers

2022 papers

2021 papers

2020 papers

2019 papers

2024.3	Shoichi Okaba, Ryoto Takeuchi, Shigenori Tsuji and Hidetoshi Katori, Continuous generation of an ultracold atomic beam using crossed moving optical lattices, Physical Review Applied 21, 034006 – Published 5 March 2024, https://doi.org/10.1103/PhysRevApplied.21.034006.
2023.6	Akio Kawasaki, Takumi Kobayashi, Akiko Nishiyama, Takehiko Tanabe, and Masami Yasuda, Observation of the 4f146s2 1S0−4f135d6s2(J=2) clock transition at 431 nm in Yb, Phys. Rev. A 107, L060801 – Published 15 June 2023, https://doi.org/10.1103/PhysRevA.107.L060801.
2023.4	Ryoto Takeuchi, Hayaki Chiba, Shoichi Okaba, Masao Takamoto, Shigenori Tsuji and Hidetoshi Katori, Continuous outcoupling of ultracold strontium atoms combining three different traps, The Japan Society of Applied Physics – Published 6 April 2023, https://doi.org/10.35848/1882-0786/accb3c.
2022.12	Takumi Kobayashi, Akifumi Takamizawa, Daisuke Akamatsu, Akio Kawasaki, Akiko Nishiyama, Kazumoto Hosaka, Yusuke Hisai, Masato Wada, Hajime Inaba, Takehiko Tanabe, and Masami Yasuda, Search for Ultralight Dark Matter from Long-Term Frequency Comparisons of Optical and Microwave Atomic Clocks, Phys. Rev. Lett. 129, 241301 – Published 7 December 2022, https://doi.org/10.1103/PhysRevLett.129.241301.
2022.04	Masao Takamoto, Yoshiyuki Tanaka,and Hidetoshi Katori, A perspective on the future of transportable optical lattice clocks, Appl. Phys. Lett. 120, 140502 (2022), https://doi.org/10.1063/5.0087894.
2021.08	N. Ohmae, M. Takamoto, Y. Takahashi, M. Kokubun, K. Araki, A. Hinton, I. Ushijima, T. Muramatsu, T. Furumiya, Y. Sakai, N. Moriya, N. Kamiya, K. Fujii, R. Muramatsu, T. Shiimado, and H. Katori, Front Cover: Transportable Strontium Optical Lattice Clocks Operated Outside Laboratory at the Level of 10−18 Uncertainty (Adv. Quantum Technol. 8/2021), Advanced Quantum Technologies Volume4, Issue8, August 2021, 2170081, https://doi.org/10.1002/qute.202170081.
2021.07	Yoshiyuki Tanaka, and Hidetoshi Katori, Exploring potential applications of optical lattice clocks in a plate subduction zone, Journal of Geodesy volume 95, Article number: 93 (2021), https://doi.org/10.1007/s00190-021-01548-y.
2021.06	Hidetoshi Katori, Longitudinal Ramsey spectroscopy of atoms for continuous operation of optical clocks, Applied Physics Express, 2021-06-23, journal-article, https://doi.org/10.35848/1882-0786/ac0e16.
2021.05	N. Ohmae, M. Takamoto, Y. Takahashi, M. Kokubun, K. Araki, A. Hinton, I. Ushijima, T. Muramatsu, T. Furumiya, Y. Sakai, N. Moriya, N. Kamiya, K. Fujii, R. Muramatsu, T. Shiimado, and H. Katori, Transportable Strontium Optical Lattice Clocks Operated Outside Laboratory at the Level of 10−18 Uncertainty, Advanced Quantum Technologies 2021, 2100015, https://doi.org/10.1002/qute.202100015.
2021.03	M. Sekido, K. Takefuji, H. Ujihara, T. Kondo, M. Tsutsumi, E. Kawai, H. Hachisu, N. Nemitz, M. Pizzocaro, C. Clivati, F. Perini, M. Negusini, G. Maccaferri, R. Ricci, M. Roma, C. Bortolotti, K. Namba, J. Komuro, R. Ichikawa, T. Suzuyama, K. Watabe, J. Leute, G. Petit, D. Calonico and T. Ido, A broadband VLBI system using transportable stations for geodesy and metrology: an alternative approach to the VGOS concept, Journal of Geodesy volume 95, Article number: 41 (2021), https://doi.org/10.1007/s00190-021-01479-8.
2021.03	N. Nemitz, T. Gotoh, F. Nakagawa, H. Ito, Y. Hanado, T. Ido, and H. Hachisu, Absolute frequency of 87Sr at 1.8×10-16 uncertainty by reference to remote Primary Frequency Standards, Metrologia, Volume 58, Number 2, 15 February 2021, https://doi.org/10.1088/1681-7575/abc232.
2021.02	Tomoya Akatsuka, Koji Hashiguchi, Tadahiro Takahashi, Noriaki Ohmae, Masao Takamoto, and Hidetoshi Katori, Three-stage laser cooling of Sr atoms using the 5s5p3P2 metastable state below Doppler temperatures, Phys. Rev. A 103, 023331 – Published 25 February 2021, https://doi.org/10.1103/PhysRevA.103.023331.
2021.01	Yusuke Hisai, Daisuke Akamatsu, Takumi Kobayashi, Kazumoto Hosaka, Hajime Inaba, Feng-Lei Hong and Masami Yasuda, Improved frequency ratio measurement with 87Sr and 171Yb optical lattice clocks at NMIJ, Metrologia, Accepted Manuscript online 14 October 2020 • © 2020 BIPM & IOP Publishing Ltd, https://doi.org/10.1088/1681-7575/abc104.
2020.11	Takumi Kobayashi, Daisuke Akamatsu, Kazumoto Hosaka, Yusuke Hisai, Masato Wada, Hajime Inaba, Tomonari Suzuyama, Feng-Lei Hong and Masami Yasuda, Demonstration of the nearly continuous operation of an 171Yb optical lattice clock for half a year, Metrologia, Volume 57, Number 6, Published 2 November 2020 • © 2020 BIPM & IOP Publishing Ltd, https://doi.org/10.1088/1681-7575/ab9f1f.
2020.10	M. Pizzocaro, M. Sekido, K. Takefuji, H. Ujihara, H. Hachisu, N. Nemitz, M. Tsutsumi, T. Kondo, E. Kawai, R. Ichikawa, K. Namba, Y. Okamoto, R. Takahashi, J. Komuro, C. Clivati, F. Bregolin, P. Barbieri, A. Mura, E. Cantoni, G. Cerretto, F. Levi, G. Maccaferri, M. Roma, C. Bortolotti, M. Negusini, R. Ricci, G. Zacchiroli, J. Roda, J. Leute, G. Petit, F. Perini, D. Calonico and T. Ido, Intercontinental comparison of optical atomic clocks through very long baseline interferometry, Nature Physics volume 17, pages223–227(2021), https://doi.org/10.1088/1681-7575/ab9f1f.
2020.05	Noriaki Ohmae, Filippo Bregolin, Nils Nemitz, and Hidetoshi Katori, Direct measurement of the frequency ratio for Hg and Yb optical lattice clock and closure of the Hg/Yb/Sr loop, Optics Express, Vol. 28, Issue 10, pp.15112-15121 (2020), https://doi.org/10.1364/OE.391602.
2020.04	Masao Takamoto, Ichiro Ushijima, Noriaki Ohmae, Toshihiro Yahagi, Kensuke Kokado, Hisaaki Shinkai & Hidetoshi Katori, Test of General Relativity by a Pair of Transportable Optical Lattice Clocks, Nature Photonics (2020), https://doi.org/10.1038/s41566-020-0619-8.
2020.03	Tomoya Akatsuka, Takashi Goh, Hiromitsu Imai, Katsuya Oguri, Atsushi Ishizawa, Ichiro Ushijima, Noriaki Ohmae, Masao Takamoto, Hidetoshi Katori, Toshikazu Hashimoto, Hideki Gotoh, and Tetsuomi Sogawa, Optical frequency distribution using laser repeater stations with planar lightwave circuits, Optics Express, Volume 28, Issue 7, pp. 9186-9197 (2020), https://doi.org/10.1364/OE.383526.
2019.11	Shoichi Okaba, Deshui Yu, Luca Vincetti, Fetah Benabid, and Hidetoshi Katori, Superradiance from Lattice-Confined Atoms inside Hollow Core Fibre, Commun. Physics 2, 136-1-10 (2019), https://doi.org/10.1038/s42005-019-0237-2.
2019.10	Koji Hashiguchi, Tomoya Akatsuka, Noriaki Ohmae, Masao Takamoto, and Hidetoshi Katori, Frequency measurement on the 5s5p3P2-5s4d3D3 transition of 88Sr atoms using the photon-momentum-transfer technique, Phys. Rev. A 100, 042513-1-7 (2019), https://doi.org/10.1103/PhysRevA.100.042513.
2019.09	Takumi Kobayashia, Daisuke Akamatsu, Kazumoto Hosaska, and Masami Yasuda, A relocking scheme for optical phase locking using a digital circuit with an electrical delay line, Review of Scientific Instruments 90, 103002 (2019), https://doi.org/10.1063/1.5111935.
2019.09	Atsushi Yamaguchi, Marianna S. Safronova, Kurt Gibble, and Hidetoshi Katori, Narrow-line cooling and determination of magic wavelength of Cd, Phys. Rev. Lett. 123, 113201-1-6 (2019), https://doi.org/10.1103/PhysRevLett.123.113201.
2019.09	Takaaki Jike, Tomoaki Oyama, Takumi Nagayama, and Aya Yamauchi, Current Results of the VERA K/Q-band Fringe Survey: Performance of the 8-Gbps Recording System and its Effectiveness, IVS 2018 General Meeting Proceedings.
2019.05	Noriaki Ohmae, and Hidetoshi Katori, 626-nm single-frequency semiconductor laser system operated near room temperature for mw-level second-harmonic generation at 313 nm, Rev. Sci. Instrum 90, 063201-1-5 (2019), https://doi.org/10.1063/1.5096368.
2019.03	Nils Nemitz, Asbjorn Arvad Jorgensen, Ryotatsu Yanagimoto, Filipo Bregolin, and Hidetoshi Katori, Modeling light shifts in optical lattice clocks, Phys. Rev. A 99, 033424 – Published 28 March 2019, https://doi.org/10.1103/PhysRevA.99.033424.
2019.03	Yoshiyuki Tanaka, Volker Klemann, and Zdenek Martinec, Surface loading of a self-gravitating, laterally heterogeneous elastic sphere –preliminary result for the 2D case, International Association of Geodesy Symposia book series (IAG SYMPOSIA, volume 151), https://doi.org/10.1007/1345_2019_62.
2019.03	Noriaki Ohmae, Shunsuke Sakama, Hidetoshi Katori, High-stability optical frequency transfer with all-fiber architecture for optical lattice clocks, Electron. Comm. Jpn. 102, 43-48 (2019), https://doi.org/10.1002/ecj.12167.
2018.12	Ichiro Ushijima, Masao Takamoto, and Hidetoshi Katori, Operational Magic Intensity for Sr Optical Lattice Clocks, Phys. Rev. Lett. 121, 263202 – Published 28 December 2018, https://doi.org/10.1103/PhysRevLett.121.263202.

Presentations

　 　 　 　 　 　 　 　 　 　 　 　

2023 presentations

2022 presentations

2021 presentations

2020 presentations

2019 presentations

2018 presentations

2024.3	Akio Kawasaki, Takumi Kobayashi, Akiko Nishiyama, Takehiko Tanabe, Masami Yasuda, Nuclear and particle physics with cold ytterbium and Rydberg atoms, Workshop on Frontier of two-electron atoms and cavity QED.
2024.3	Ryoto Takeuchi, Hayaki Chiba, Shoichi Okaba, Shigenori Tsuji, Masao Takamoto, Hidetoshi Katori, Continuous generation of a moving-lattice-trapped atomic beam utilizing metastable states, Workshop on Frontier of two-electron atoms and cavity QED.
2024.3	Akio Kawasaki, Nuclear and particle physics with cold ytterbium and Rydberg atoms, FPUA 2024.
2024.3	Masao Takamoto, Activities around position, navigation and timing(Use-case implementation, exchange of researchers and engineers, etc.), Japan-UK Workshop on Quantum Technology.
2023.12	M. Takamoto, I. Ushijima, H. Katori, Fundamental Physics with Precision Clocks, QUPosium 2023.
2023.11	Hidetoshi Katori, Making optical lattice clocks compact and useful for real-world applications, 28th International Conference on Optical Fiber Sensors.
2023.10	Hidetoshi Katori, Development of transportable optical lattice clocks and applications, The 9th Symposium on Frequency Standards and Metrology.
2023.10	T.Ido,H.Hachisu,N.Nemitz,H.Ito,N.Ohtsubo,Y.Miyauchi,M.Morikawa,M.Tonnes,T.Gotoh,Y.Hanado,K.Matsubara, UTC(k) steered by intermittent operation of an optical clock, The 9th Symposium on Frequency Standards and Metrology.
2023.10	H.A.Yang,M.Takamoto,R.Yamashita,I.Ushijima,S.Tsuji, T.Muramatsu,T.Hiroki,Y.Sakai,Y.Hisai and H.Katori, Development of Transportable Optical Lattice Clock, The 9th Symposium on Frequency Standards and Metrology.
2023.10	N.Nemitz,H.Hachisu,M.Tonnes,H.Ito,N.Ohtsubo,Y.Miyauchi,M.Morikawa,K.Matsubara, T.Ido, Hydrogen Maser Flywheels for Optical Clocks, The 9th Symposium on Frequency Standards and Metrology.
2023.10	H.Hachisu,N.Nemitz,M.Tonnes,H.Ito,N.Ohtsubo,Y.Miyauchi,M.Morikawa,K.Matsubara,T.Gotoh,Y.Hanado and T.Ido, Contributions of the Optical Lattice Clock NICT-Sr1 to TAI Calibration and UTC(NICT) steering, The 9th Symposium on Frequency Standards and Metrology.
2023.10	T.Muramatsu,T.Hiroki,Y.Sakai,Y.Hisai,T.Furumiya,S.Uno,K.Tojo,M.Takamoto,H.Katori, Compact and Robust Laser System for Transportable Strontium Optical Lattice Clock, The 9th Symposium on Frequency Standards and Metrology.
2023.9	Hidetoshi Katori, Micius Prize Talk "Optical Lattice Clock: From curiosity-driven research to future technology", ICEQT 2023.
2023.8	Ichiro Ushijima, Optical lattice clocks and their geodetic applications, 65th KVS Summer Annual Conference & IFFM 2023.
2023.7	Hidetoshi Katori, Making optical lattice clocks compact and useful for real-world applications, The 27th International Conference on Atomic Physics(ICAP2022).
2023.7	M. Takamoto, I. Ushijima, H. Katori, Development of a transportable optical lattice clock and its applications, The 31st annual international Laser Physics Workshop.
2023.5	Hidetoshi Katori, Making optical lattice clocks compact and useful for real-world applications, EFTF-IFCS-ATF2023 (Toyama, JAPAN: 2022/5/19).
2023.5	Hidetoshi Katori, Optical clocks and their applications, EFTF-IFCS-ATF2023 (Toyama, JAPAN: 2022/5/13).
2023.5	A. Nishiyama, T. Kobayashi, S. Okubo, D. Akamatsu, K. Hosaka, Y. Hisai, A. Kawasaki, M. Wada, H. Inaba, T. Tanabe, F.-L. Hong, and M. Yasuda, Contribution to TAI calibration by NMIJ-Yb1 and development of a new ultra-stable laser, EFTF-IFCS-ATF2023 (Toyama, JAPAN: 2022/5/13).
2023.5	T. Kobayashi, A. Takamizawa, D. Akamatsu, A. Kawasaki, A. Nishiyama, K. Hosaka, Y. Hisai, M. Wada, H. Inaba, T. Tanabe, M. Yasuda, Absolute frequency measurement of NMIJ-Yb1 referenced to NMIJ-F2 and search for dark matter, EFTF-IFCS-ATF2023 (Toyama, JAPAN: 2022/5/13).
2023.4	Hidetoshi Katori, (Plenary) Making optical lattice clocks compact and useful for real-world applications, OPTICS & PHOTONICS International Congress 2023(OPIC2023) (Yokohama, Kanagawa, JAPAN: 2023/4/18).
2023.3	Hidetoshi Katori, Making optical lattice clocks compact and useful for real-world applications, University of Birmingham’s School of Physics and Astronomy (United Kingdom: 2022/3/14).
2023.3	Tomoya Akatsuka, Hiromitsu Imai, Masao Takamoto, Ichiro Ushijima, Takashi Goh, Toshikazu Hashimoto, Hidetoshi Katori, Katsuya Oguri, and Tetsuomi Sogawa, Optical clock distribution over stable fiber links in noisy environments, Optical Fiber Communication Conference (OFC2023) (San Diego, CA, USA: 2023/3/5).
2022.10	Masao Takamoto, Test of gravitational redshift with optical lattice clocks and their applications, ACES Workshop 2022 (FRANCE: 2022/10/20).
2022.10	Hidetoshi Katori, Making optical lattice clocks compact and useful for real-world applications, Quantum sensors and tests of new physics (QSNP) (Hannover, GERMANY: 2022/10/7).
2022.9	Hidetoshi Katori, (Plenary) Making optical lattice clocks compact and useful for real-world applications, The 22nd international vacuum congress IVC-22 (Sapporo, Japan: 2022/9/13).
2022.8	Tetsuya Ido, Comparing distant optical clocks to realize the redefinition of the second, CLEO-PR 2022 (Sapporo, Japan: 2022/8/5).
2022.7	Tomoya Akatsuka, Hiromitsu Imai, Kaoru Arai, Hiroki Sakuma, Atsushi Ishizawa, Takashi Goh, Toshikazu Hashimoto, Masao Takamoto, Hidetoshi Katori, Katsuya Oguri, Hideki Gotoh, and Tetsuomi Sogawa, Highly stable laser repeater system with frequency instability below 10^-21, Conference on Laser and Electro-Optics / Pacific Rim (CLEO-PR2022) (Sapporo, Japan: 2022/7/31).
2022.7	Hidetoshi Katori, (Plenary) Making optical lattice clocks compact and useful for real-world applications, The 27th International Conference on Atomic Physics (ICAP2022) (CANADA : 2022/7/20).
2022.5	Hidetoshi Katori, Making optical lattice clocks compact and useful for real-world applications, APS DAMOP 2022 Meeting A01 Breakthrough Prize in Fundamental Physics (Florida, USA: 2022/5/31).
2021.12	Nils Nemitz, Calibrating International Time and tracing the frequency of NICT-Sr1 to remote Primary Frequency Standards, International Symposium on Novel maTerials and quantum Technologies (ISNTT2021)(Online: 2021/12/16).
2021.12	Hidetoshi Katori, Transportable Optical Lattice Clocks to Test and Use Gravitational Redshift, International Symposium on Novel maTerials and quantum Technologies (ISNTT2021)(Online: 2021/12/16).
2021.12	Tetsuya Ido, Lattice clock as a frequency standard for JST and UTC, Quantum Innovation 2021(Online: 2021/12/9).
2021.12	Hidetoshi Katori, Transportable Optical Lattice Clocks to Test and Use Gravitational Redshift, Quantum Innovation 2021(Online: 2021/12/7).
2021.11	T. Kobayashi, Contribution to International Atomic Time by the nearly continuous operation of an Yb optical lattice clock, Asia Pacific Workshop on Time and Frequency(Online: 2021/11/11).
2021.11	N. Ohmae, M. Takamoto, I. Ushijima, T. Yahagi, K. Kokado, H. Shinkai, H. Katori, Transportable optical lattice clocks to test gravitational redshift, International Meet & Expo on Laser, Optics and Photonics 2021 (OPTICSMEET2021)(Online: 2021/11/4).
2021.9	Shoichi Okaba, Superradiance from atoms inside hollow core fiber, Workshop on Collective Scattering of Light 2021(Online: 2021/9/16).
2021.9	Tetsuya Ido, Contributions to TAI by evaluating its scale interval with an optical lattice clock, URSI General Assembly scientific session(Online: 2021/9/3).
2021.8	Hidetoshi Katori, Transportable Optical Lattice Clocks to Test and Use Gravitational Redshift, IMEKO XXIII World congress 2021(Online: 2021/8/30-9/3).
2021.8	M. Yasuda, T. Tanabe, T. Kobayashi, D. Akamatsu, T. Sato, A. Hatakeyama, Light-Controlled Slow Ytterbium Atom Source for Transportable Optical Lattice Clock, URSI GASS 2021(Online: 2021/8/28-9/4).
2021.8	Hidetoshi Katori, Transportable Optical Lattice Clocks to Test and Use Gravitational Redshift, MPLP-2021, The IX International Symposium, “MODERN PROBLEMS OF LASER PHYSICS”(Online: 2021/8/22-26).
2021.7	T. Kobayashi, Progress report of the 171Yb optical lattice clock NMIJ-Yb1, Joint Conference of European Frequency And Time Forum & The IEEE International Frequency Control Symposium(Online: 2021/7/12-15).
2021.7	Hidetoshi Katori, Transportable Optical Lattice Clocks to Test and Use Gravitational Redshift, 2021 Joint Virtual Conference of European Frequency and Time Forum & the IEEE International Frequency Control Symposium(Online: 2021/7/7-17).
2021.7	Nils Nemitz, TAI calibrations by optical clock NICT-Sr1, IFCS-EFTF 2021(Online: 2021/7/12).
2021.7	Masao Takamoto, Test of gravitational redshift with optical lattice clocks and their applications to relativistic geodesy, Sixteenth Marcel Grossmann Meeting(Online: 2021/7/5).
2021.5	Hidetoshi Katori, Transportable Optical Lattice Clocks to Test and Use Gravitational Redshift, QuantumFrontiers General Assembly 2021(Online: 2021/5/18).
2021.4	Nils Nemitz, Bringing optical clocks to international time scales, Seminar on Precision Physics and Fundamental Symmetries(Online: 2021/4/15).
2021.3	N. Ohmae, M. Takamoto, I. Ushijima, T. Yahagi, K. Kokado, H. Shinkai, and H. Katori , Transportable optical lattice clocks to test gravitational redshift in a broadcasting tower, 55th Rencontres de Moriond 2021 on Gravitation(Online: 2021/3/9).
2021.3	Ichiro Ushijima, Transportable optical lattice clocks with 18-digit precision, TCFS-Workshop(Online: 2021/3/9).
2020.12	Yoshiyuki Tanaka, V. Klemann, Z. Martinec, Estimating the effects of laterally heterogeneous elasticity on coseismic deformation –a rotationally symmetric case, 2020 American Geophysical Union Fall Meeting(Online: 2020/12/8).
2020.12	Yoshiyuki Tanaka, Relativistic geodesy using optical lattice clock and its application to seismological and volcanological studies, International Workshop on Forefront Optical Lattice Clocks: from Curiosity-Driven Research to Real-World Applications(Japan: 2020/12/3).
2020.12	Tetsuomi Sogawa, Ultrastable cascaded optical frequency distribution towards telecom-fiber-based optical lattice clock network, International Workshop on Forefront Optical Lattice Clocks: from Curiosity-Driven Research to Real-World Applications(Japan: 2020/12/3).
2020.12	Hidetoshi Katori, Optical Lattice Clocks: Choice of atomic elements for science and practicality, International Workshop on Forefront Optical Lattice Clocks: from Curiosity-Driven Research to Real-World Applications(Japan: 2020/12/3).
2020.9	Hidetoshi Katori, Transportable Optical Lattice Clocks to Test Gravitational Redshift, OSA Quantum 2.0 Conference(Online: 2020/9/14).
2020.8	Masao Takamoto, Development of Transportable Optical Lattice Clocks and Test of General Relativity, 2020 NCHU-RIKEN Workshop on Devices and Materials(Online: 2020/8/27).
2020.7	N. Nemitz, M. Sekido, K. Takefuji, H. Ujihara, M. Tsusumi, E. Kawai, K. Namba, Y. Okamoto, R. Takahashi, J. Komuro, R. Ichikawa, H. Hachisu, H. Ishijima, T. Ido, J. Leute, G. Petit, F. Perini, M. Negusini, G. Maccaferri, R. Ricci, M. Roma, M. Pizzocaro, F. Bregolin, P. Barbieri, C. Clivati, A. Mura, F. Levi, D. Calonico, Intercontinental optical clock comparison by broadband VLBI, International Frequency Control Symposium(Online: 2020/7/23).
2020.7	Takumi Kobayashi, Nearly continuous operation of an Yb optical lattice clock towards contribution to the International Atomic Time, IEEE IFCS-ISAF 2020(Online: 2020/7/19).
2020.6	Hidetoshi Katori, Transportable Optical Lattice Clocks to Test Gravitational Redshift, 51st Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics(Online: 2020/6/4).
2020.5	Masao Takamoto, Noriaki Ohmae, Ichiro Ushijima, Hidetoshi Katori, Development of transportable optical lattice clocks for geodetic applications, CLEO 2020(Online: 2020/5/11).
2020.5	Yoshiyuki Tanaka, Yosuke Aoki and Ryuichi Nishiyama, Geodetic determination of the gravitational potential difference for the optical lattice clock comparison in the Kanto region in Japan, European Geosciences Union General Assembly 2020(Online: 2020/5/7).
2019.12	Hidetoshi Katori, Transportable Optical Lattice Clocks to Test Gravitational Redshift, EU-USA-Japan International Symposium on Quantum Technology(ISQT)(Japan: 2019/12/16).
2019.12	Tanaka, Y., V. Klemann, Z. Martinec, Estimating the effects of laterally heterogeneous elasticity and density structures on surface loading -a rotationally symmetric case, 2019 American Geophysical Union Fall Meeting(USA: 2019/12/13).
2019.11	Hidetoshi Katori, Transportable Optical Lattice Clocks to Test Gravitational Redshift, ENS/UTokyo WS on Physics(Japan: 2019/11/25).
2019.11	Hidetoshi Katori, Optical lattice clocks “From curiosity-driven research to practical devices”, QUANTUM TECHNOLOGY SEMINAR ~How collaboration of Japanese and Danish researchers is contributing to current and future innovation~(Denmark: 2019/11/21).
2019.10	Hidetoshi Katori, Optical lattice clocks and their field operation, Physics of fundamental Symmetries and Interactions - PSI2019(Switzerland: 2019/10/20).
2019.9	Yoshiyuki Tanaka, TPotential applications of optical lattice clocks in geodesy -an introduction-, APEC Seminar(Japan: 2019/9/18).
2019.9	Hidetoshi Katori, Optical lattice clocks---From curiosity-driven research to practical devices---, UK-Japan Quantum Technology Workshop(Japan: 2019/9/10).
2019.9	Tetsuya Ido, Hidekazu Hachisu, Nils Nemitz, Fumimaru Nakagawa, Yuko Hanado, Application of optical clocks toward real-time generation of a time scale, URSI-JRSM(Japan: 2019/9/6).
2019.7	Hidetoshi Katori, Optical lattice clocks and their applications---From curiosity-driven research (1999) to practical devices---, ICPEAC Dequville 2019(France: 2019/7/24).
2019.7	Yoshiyuki Tanaka, Yuichi Imanishi, and Yoshiaki Tamura, Possible applications of optical lattice clock to crustal deformation monitoring, 27th IUGG General Assembly (Canada: 2019/7/14).
2019.7	Tomoya Akatsuka, Takashi Goh, Hiromitsu Imai, Katsuya Oguri, Atsushi Ishizawa, Ichiro Ushijima, Noriaki Ohmae, Masao Takamoto, Hidetoshi Katori, Toshikazu Hashimoto, Hideki Gotoh, and Tetsuomi Sogawa, Cascaded optical fiber link using PLC-based laser repeater stations, International Conference on Laser Spectroscopy (ICOLS2019)(New Zealand: 2019/7/8).
2019.6	Hidetoshi Katori, Magic conditions for optical lattice clocks to operate at 10-19 uncertainty, CLEO/EUROPE-EQEC(Germany: 2019/6/23).
2019.4	Hidetoshi Katori, Current Status of Optical Lattice Clocks at RIKEN & UT, IFCS-EFTE2019(USA: 2019/4/14).
2019.3	Masao Takamoto, Ichiro Ushijima, Hidetoshi Katori, Geopotential measurements with synchronously linked optical lattice clocks, American Physical Society March Meeting 2019(USA: 2019/3/8).
2019.3	Hidetoshi Katori, Magic conditions for optical lattice clocks to operate at 10-19 uncertainty, The 11th International Workshop on Fundamental Physics Using Atoms(Japan: 2019/3/3).
2019.2	Hidetoshi Katori, Magic conditions for optical lattice clocks to operate at 10-19 uncertainty, Kavli IPMU Visions for table-top dark matter experiments(Japan: 2019/2/26).
2018.12	Yoshiyuki Tanaka, V. Klemann, Z. Martinec, Effects of laterally heterogeneous elastic structures on surface loading –a preliminary result for a rotationally symmetric spherical earth model, 2018 American Geoiphysical Union Fall Meeting(USA: 2018/12/10).

Book and Article

2020 Book and Article

2020.12	RIKEN Center for Advanced Photonics and Cluster for Pioneering Research, Scientists use Tokyo Skytree to test Einstein’s theory of general relativity, riken english channel.
2020.7	Masao Takamoto, Ichiro Ushijima, Noriaki Ohmae, Toshihiro Yahagi, Kensuke Kokado, Hisaaki Shinkai and Hidetoshi Katori, Einstein put to the test in Tokyo, U-Tokyo ARTICLES.

Prize

2022 Prize

2021 Prize

2020 Prize

2022.9	Professor Katori of the program manager,    Received the      "Honda Prize 2022". ･Press Releases Honda Prize 2022 ･About the Honda Prize
2021.9	Professor Katori of the program manager,    Received the      "Breakthrough Prize in Fundamental Physics". ･Press release from the Breakthrough Prize ･Reason for awardn
2021.3	Dr. Takamoto, assistant program manager,    Received the      "3rd (2020) Teruo Hiruma Optical Science Award". ･Press release from Research Foundation for Opto-Science and Technology(Japanese) ･Press release from RIKEN(Japanese)
2020.12	Professor Katori of the program manager,    Received the      "Micius Quantum Prize 2020". ･Press release from the Micius Quantum Foundation ･Website of the Micius Quantum Foundation
2020.9	Professor Katori of the program manager,    Received the      "Hattori Foundation 90th Anniversary Special Award". ･The Hattori Foundation website (Japanese) ･The University of Tokyo Press Release Site (Japanese)