国際学会・講演



2016年

高本将男:
"Precision metrology with optical lattice clocks",
UBIAS International Academia Nagoya Workshop (2016/3/9) 【一般】

香取秀俊:
"Frequency ration of optical lattice clocks at the 17th decimal place",
LEAP2016 (2016/3/8 ) 【招待】

Hidetoshi Katori:
"Frequency ration of optical lattice clocks at the 17th decimal place",
International Conference on Quantum Optics 2016 (2016/2/26 ) 【招待】

b.p. Tetsushi Takano (Hidetoshi Katori):
"Remote frequency comparison of cryogenic optical lattice clocks",
The 6th International Workshop on Ultracold Group II atoms (2016/2/23) 【招待】

2015年

Hidetoshi Katori:
“Frequency Comparisons of Sr, Yb and Hg based optical lattice clocks in the lab and between the labs”
8th Symposium on Frequency Standards and Metrology 2015 (2015/10/13) 【招待】

N. Nemitz, T. Ohkubo, M. Takamoto, I. Ushijima, M. Das, N. Ohmae, H. Katori:
“Measuring the Yb/Sr clock frequency ratio with cryogenic optical lattice clocks”,
8th Symposium on Frequency Standards and Metrology 2015 (2015/10/12,13) 【ポスター】

Hidetoshi Katori:
“Frequency ratios of optical lattice clocks at the 17th decimal place”,
12th US-Japan Seminar on many body quantum systems (2015/9/22)【招待】

Tetsushi Takano:
“Remote frequency comparison of cryogenic optical lattice clocks”,
12th US-Japan Seminar on many body quantum systems (2015/9/21) 【ポスター】

Shoichi Okaba:
“Super-radiance in HC-PCF”,
12th US-Japan Seminar on many body quantum systems (2015/9/21) 【ポスター】

Hidetoshi Katori:
“Seeking for a New Second”,
iNOW2015, International Nano Optoelectronics Workshop (2015/8/3) 【招待】

Hidetoshi Katori:
“Lattice Clocks -from the beginning to the latest-”,
OCS2015 , School on Optical Clocks (2015/7/3) 【招待】

Hidetoshi Katori:
“Frequency ratios of Sr, Yb, and Hg based optical lattice clocks and their applications”,
ICOLS2015, 22nd International Conference on Laser Spectroscopy (2015/6/30) 【招待】

Noriaki Ohmae, K. Yamanaka, I. Ushijima, M. Takamoto, K. Katori:
“Frequency ratio measurement of Hg and Sr optical lattice clocks”,
2015 Conference on Lasers and Electro-Optics Europe & the European Quantum Electronics Conference (2015/6/22) 【一般】

Hidetoshi Katori:
“Frequency Comparison of Optical Lattice Clocks and its Applications”,
Gordon Research Conference on Atomic Physics: From Ultracold to Strongly Interacting Quantum Systems (2015/6/18) 【招待】

Masao Takamoto:
“Frequency comparison of cryogenic Sr optical lattice clocks at 10-18”,
BIT's 4th Annual World Congress of Advanced Materials-2015 (WCAM-2015) (2015/5/27) 【招待】

Hidetoshi Katori:
“Frequency comparisons of Sr, Yb, and Hg based optical lattice clocks and their applications”,
CLEO 2015 (2015/5/15) 【招待】

N. Nemitz, T. Ohkubo, M. Takamoto, I. Ushijima, M. Das, N. Ohmae, H. Katori:
“Measuring the Yb/Sr clock frequency ratio with cryogenic optical lattice clocks”,
2015 Joint Conference of the IEEE International Frequency Control Symposium and European Frequency and Time Forum (2015/4/14) 【一般】


2014年

Hidetoshi Katori: 
“Optical lattice clock for fundamental physics: A bridge from ion to atom physics”,
Trapped Charged Particle and Fundamental Physics TCP school (2014/11/29) 【招待】

Hidetoshi Katori:
“Optical Lattice Clocks as Quantum Sensors for Space-time and Fundamental Physics”,
11th Asian International Seminar on Atomic and Molecular Physics (AISAMP11) (2014/10/10 [Plenary])

Hidetoshi Katori: 
“Reading 18th Decimal Places of Time with Optical Lattice Clocks”,
2014年URSI 日本電波科学会議(URSI-JRSM2014) (2014/9/8) 【招待】

Hidetoshi Katori: 
“Optical lattice clocks-sensing the space-time curvature”,
Physics Colloquium, Universität Tübingen (2014/7/16)【招待】

Hidetoshi Katori:
“Frequency comparison of cryogenic optical lattice clocks”,
New Ideas in low-Energy Tests of Fundamental Physics (2014/6/16) 【招待】

Hidetoshi Katori, Ichiro Ushijima, and Masao Takamoto: “Frequency Comparison of Cryogenic Optical Lattice Clocks Between Riken and the University of Tokyo”,
2014 IEEE International Frequency Control Symposium (2014/5/21) 【一般】

Hidetoshi Katori: “Frequency comparison of cryogenic optical lattice clocks in a lab and inter labs”,
2014 Frequency Control Symposium (2014/5/19) 【招待】

Hidetoshi Katori:
“Frequency comparison of cryogenic Sr optical lattice clocks at 10-18”,
7th International Workshop on Fundamental Physics using Atoms 2014 (FPUA2014) (2014/3/16) 【招待】

Tomoya Akatsuka, Hitomi Ono, Keitaro Hayashida, Tetsushi Takano, Atsushi Yamaguchi, Masao Takamoto, Ichiro Ushijima, and Hidetoshi Katori:
“Coherent frequency transfer of a strontium optical lattice clock via a 30-km-long optical fiber”,
7th International Workshop on Fundamental Physics using Atoms 2014 ( FPUA2014) (2014/3/14-15) 【ポスター】

Hidetoshi Katori:
“Frequency Comparison of Ensemble of Optical Lattice Clocks: Identifying the 18th decimal places”,
FIRST International Symposium on “Topological Quantum Technology” (2014/1/29) 【招待】


2013年

Hidetoshi Katori:
“時空のゆがみを見る光格子時計”,
日本光学会年次学術講演会 Optics & Photonics Japan 2013 (2013/11/12) 【基調】

Hidetoshi Katori:
“Optical Lattice clocks and their applications”,
6th Asian Summer School and Symposium on Laser-Plasma Acceleration and Radiation (2012/9/4) 【招待】

Masao Takamoto, Ichiro Ushijima, Takuya Ohkubo, Manoj Das, Nils Nemitz, and Hidetoshi Katori:
“Optical lattice clocks with 87Sr in a cryogenic environment”,
Modern Problems of Laser Physics (MPLP 2013) (2013/8/25) 【招待】

Tomoya Akatsuka, Hitomi Ono, Keitaro Hayashida, Kuniya Araki, Masao Takamoto, Tetsushi Takano, and Hidetoshi Katori:
“A 30-km-long optical fiber link for frequency comparison between distant strontium optical lattice clocks”,
2013 IEEE International Frequency Control Symposium (2013/7/25) 【一般】

Ichiro Ushijima, Takuya Ohkubo, Manoj Das, Masao Takamoto, and Hidetoshi Katori:
“Optical lattice clocks with 87Sr in a cryogenic environment”,
2013 IEEE International Frequency Control Symposium (2013/7/24) 【一般】

Ichiro Ushijima, Takuya Ohkubo, Manoj Das, Masao Takamoto, and Hidetoshi Katori:
“Optical lattice clocks with 87Sr in a cryogenic environment”,
2013 IEEE International Frequency Control Symposium (2013/7/22-25) 【ポスター】

N.Ohmae, K.Yamanaka, M.Takamoto, and H.Katori:
“Development of Hg optical lattice clocks”,
The 12th Asia Pacific Physics Conference of AAPPS, ASEPS3 The third Asia-Europe Physics Summit (2013/7/17) 【一般】

Tomoya Akatsuka, Hitomi Ono, Keitaro Hayashida, Kuniya Araki, Masao Takamoto, Tetsushi Takano, and Hidetoshi Katori:
“Optical fiber link for frequency comparison between strontium optical lattice clocks operating at distant laboratories”,
The 12th Asia Pacific Physics Conference of AAPPS, ASEPS3 The third Asia-Europe Physics Summit (2013/7/17) 【ポスター】

Ichiro Ushijima, Manoj Das,Takuya Ohkubo,Masao Takamoto, and Hidetoshi Katori:
“Evaluation of blackbody radiation shift with 87Sr optical lattice clocks”,
The 12th Asia Pacific Physics Conference of AAPPS, ASEPS3 The third Asia-Europe Physics Summit (2013/7/17) 【ポスター】

Hidetoshi Katori:
“Precise Comparisons of Optical Lattice Clocks”,
CLEO-PR&OECC/PS 2013 Workshop on C-Special : Photon Frontier Network (2013/6/30) 【招待】

Kazuhiro Yamanaka, Noriaki Ohmae, Masao Takamoto, and Hidetoshi Katori:
“Development of Hg optical lattice clock at RIKEN”,
The 21st International Conference on Laser Spectroscopy (2013/6) 【ポスター】

Masao Takamoto, Ichiro Ushijima, Manoj Das, Takuya Ohkubo, Nils Nemitz, and Hidetoshi Katori:
“Optical lattice clocks with 87Sr in a cryogenic environment”,
The 21st International Conference on Laser Spectroscopy (2013/6) 【ポスター】

Hidetoshi Katori:
“Development of Optical Lattice Clocks Aiming at 10-18 Uncertainties”, Quantum Optics Ⅷ (2013/5/30) 【招待】

Hidetoshi Katori:
“Precise Frequency Comparisons of Optical Lattice Clocks”,
C3QS:Coherent Control of Complex Quantum Systems (2013/5/8) 【招待】

Hidetoshi Katori:
“Optical lattice clocks:A decade after Yatsugatake US-Japan seminar”,
US-JAPAN Joint seminar 2013 (2013/4/9) 【招待】

Takuya Ohkubo, Ichirou Ushijima, Manoj Das, Masao Takamoto, and Hidetoshi Katori:
“Evaluation of blackbody radiation shift of strontium optical lattice clock”,
US-JAPAN Joint seminar 2013 (2013/4/5,10) 【ポスター】

Shouichi Okaba,Tethushi Takano, and Hidetoshi Katori:
“Precision spectroscopy of atoms inside hollow core fiber”,
US-JAPAN Joint seminar 2013 (2013/4/5,10) 【ポスター】

Tomoya Akatsuka, Hitomi Ono, Keitaro Hayashida, Masao Takamoto, Tetsushi Takano, and Hidetoshi Katori:
“A 30-km-long optical fiber link between Riken and University of Tokyo for frequency comparison between remote optical lattice clocks”,
NICT Workshop on the optical frequency standards -Recent progress and future prospect- (2013/2/7) 【ポスター】

Hidetoshi Katori:
“Optical Lattice clocks at Riken”,
NICT Workshop on the optical frequency standards -Recent progress and future prospect- (2013/2/7) 【招待】


2012年

牛島一朗, Das Manoj, 大久保拓哉, 高野哲至, 高本将男, 香取秀俊:
“Optical lattice clocks with 87Sr in a cryogenic environment”,
GCOE International Symposium on Physical Sciences Frontier (2012/12/8) 【ポスター】

香取秀俊:
“Development of Optical Lattice Clocks Aiming at 10-18 Uncertainties”,
GCOE International Symposium on Physical Sciences Frontier (2012/12/8) 【一般】

Manoj Das, Ichiro Ushijima, Takuya Ohkubo, Masao Takamoto, and Hidetoshi Katori:
“Development of Strontium Optical Lattice Clocks: Towards frequency uncertainty of 10-18”,
8th International conference on Advances in Metrology (2012/11/7)

Tomoya Akatsuka, Hitomi Ono, Masao Takamoto, Tetsushi Takano, Noriaki Ohmae, Manoj Das, Ichiro Ushijima, Takuya Ohkubo, and Hidetoshi Katori:
“A 30-km optical fiber link for frequency comparison between remote optical lattice clocks”,
The 5th International workshop on ultracold groupⅡatoms (2012/10/11) 【ポスター】

N. Ohmae, Y. Aso, A. Shoda, T. Ushiba, M. Takamoto, and H. Katori:
“Stable lasers toward 10-17 stability with cryogenic cavity and 1-m-long cavity”,
The 5th International workshop on ultracold groupⅡatoms (2012/10/11) 【ポスター】

Masao Takamoto, Ichiro Ushijima, Manoj Das, Takuya Ohkubo, and Hidetoshi Katori:
“Optical lattice clocks with 87Sr in a cryogenic environment”,
The 5th International workshop on ultracold groupⅡatoms (2012/10/11) 【ポスター】

Kazuhiro Yamanaka, Noriaki. Ohmae, Pierre Thoumany, Masao Takamoto, and Hidetoshi Katori:
“Optical lattice clock based on neutral Hg at RIKEN”,
The 5th International workshop on ultracold groupⅡatoms (2012/10/11) 【ポスター】

Hidetoshi Katori:
“Optical lattice clocks at Riken”,
The 5th International workshop on ultracold group Ⅱatoms (2012/10/10) 【招待】

Hidetoshi Katori:
“Prospects for Frequency Comparison of Sr and Hg Based Optical Lattice Clocks Toward 10-18 Uncertainties”,
2012 IEEE International Frequency Control Sumposium (2012/5/22) 【招待】

Hidetoshi Katori:
“Synchronous frequency comparison of optical lattice clocks to approach the quantum limit”,
Shanghai-Tokyo Advanced Research symposium on Ultrafast Intense Laser Science (2012/5/17) 【招待】

Hidetoshi Katori:
“Prospects for Frequency Comparison of Optical Lattice Clocks Toward 10-18 Fractional Uncertainties”,
2012 European Frequency and Time Forum (2012/4/22) 【招待】


2011年

Hidetoshi Katori:
“光格子時計/Optical lattice clocks and future roles for clocks”,
Germany-Japan Round Table From the early universe to the evolution of life (2011/12/3) 【招待】

Masao Takamoto:
“Frequency comparison of optical lattice clocks near the quantum limit”,
Cold Antimatter & High Precision Physics (pbar11) (2011/11/29) 【招待】

Masao Takamoto, Tetsushi Takano, and Hidetoshi Katori:
“Frequency Comparison of Optical Lattice Clocks”,
SPIE (2011/9/12) 【招待】

H. Katori, T. Takano, and M. Takamoto:
“Synchronous frequency comparison of optical lattice clocks to approach the quantum limit”,
URSI General Assembly and Scientific Symposium(URSIGASS2011) (2011/8/19) 【招待】

Hidetoshi Katori, Tetsushi Takano, and Masao Takamoto:
“Synchronous Frequency Comparison of Optical Lattice Clocks to approach the Quantum Limit”,
487. Wilhelm and Else Heraeus Seminar Astrophysics, Clocks and Fundamental Constants (2011/7/20) 【招待】

Hidetoshi Katori:
“Synchronous Frequency Comparison of Optical Lattice Clocks to approach the Quantum Limit”,
The 20th International Conference on Laser Spectroscopy (ICOLS 2011) (2011/5/30) 【招待】

Noriaki Ohmae, and Norikatsu Mio:
“The High Power Light Source for LCGT”,
Gravitational Waves Advanced Detectors Workshop (GWADW 2011) (2011/5/23) 【一般】

T. Ido, M. Fujieda, A. Yamaguchi, M. Kumagai, H. Hachisu, and S. Nagano, T. Takano, M. Takamoto, and H. Katori:
“Optical direct comparison of two 87Sr lattice clocks using a >50km fiber link”,
CLEO/QELS: 2011 the Conference on Lasers and Electro-Optics (2011/5/1) 【一般】

Hidetoshi Katori:
“Frequency Comparison of Optical Lattice Clocks near the Quantum Limit”;
ERATO Macroscopic Quantum Control Conference on ltracold Atoms and Molecules (UCAM2011) (2011/1/25) 【招待】

A. Yamaguchi, M. Kumagai, M. Fujieda, N. Shiga, S. Nagano, H. Hachisu, Y. Koyama, T. Ido, T. Takano, M. Takamoto, and H. Katori:
“Optical direct comparison of two 87Sr lattice clocks using a > 50 km fiber link”,
ERATO Macroscopic Quantum Control Conference on ltracold Atoms and Molecules (UCAM2011) (2011/1/24) 【ポスター】

Kazuhiro Yamanaka, Hidekazu Hachisu, Tadashi Nonaka, Saneyuki Imamura, Masao Takamoto, and Hidetoshi Katori:
“Optical lattice clock with neutral mercury atoms”,
ERATO Macroscopic Quantum Control Conference on ltracold Atoms and Molecules (UCAM2011) (2011/1/24) 【ポスター】

Tetsushi Takano, Masao Takamoto, and Hidetoshi Katori:
“Improvement of isotope shift measurement using two optical lattice clocks”,
ERATO Macroscopic Quantum Control Conference on ltracold Atoms and Molecules (UCAM2011) (2011/1/24) 【ポスター】

Masao Takamoto, Tetsushi Takano, and Hidetoshi Katori:
“Frequency comparison of two optical lattice clocks with synchronous interrogations”,
ERATO Macroscopic Quantum Control Conference on ltracold Atoms and Molecules (UCAM2011) (2011/1/24) 【ポスター】


~2010年

Masao Takamoto, Tetsushi Takano, and Hidetoshi Katori:
“Frequency comparison of optical lattice clocks”,
INRIM (2010/12/1) 【招待】

Hidetoshi Katori:
“17-digits’ Frequency Comparison of Optical Lattice Clocks near the Quantum Limit”,
The third international conference on “Updating Quantum Cryptography and Communications” (2010/10/20) 【招待】

Hidekazu Hachisu, Masao Takamoto, and Hidetoshi Katori:
“Measurement of the Blackbody shift using a cryogenic Sr Optical lattice clock”,
2010 Asia-Pacific Radio Science Conference (AP-RASC'10), A3b-5 (2010/9/24) 【招待】

Masao Takamoto, Tetsushi Takano, and Hidetoshi Katori:
“Opitcal lattice clock”,
International Conference on Coherent and Nonlinear Optics (ICONO 2010)IWA3 (2010/8/25) 【招待】

Tetsushi Takano, Masao Takamoto, and Hidetoshi Katori:
“Frequency comparison between two optical lattice clocks towards 10-16 uncertainty”,
22nd International conference on Atomic Physics (2010/7/29) 【ポスター】

Koji Hashiguchi, Hidekazu Hachisu, Yoshiaki Nakajima, Hajime Inaba, Masao Takamoto, and Hidetoshi Katori:
“Laser cooling of Sr atoms on the 3P2-3D3 transition at 2.9 mm”,
22nd International conference on Atomic Physics (2010/7/27) 【ポスター】

Hidetoshi Katori:
“Optical Lattice Clocks & Frequency Comparisons”,
22nd International conference on Atomic Physics (2010/7/27) 【招待】

Tetsushi Takano, Hidekazu Hachisu, Masao Takamoto, and Hidetoshi Katori:
“Optical lattice clock”,
Variation of fundamental constants and violation of fundamental symmetries P, T(EDM), CPT, Lorentz invariance (2010/7/24) 【招待】

Hidetoshi Katori:
“Optical Lattice Clocks & Frequency Comparisons”,
2010 Conference on Precision Electromagnetic Measurements (CPEM) (2010/6/15) 【招待】

Hidetoshi Katori:
“Optical Lattice Clocks toward 10-17 Uncertainty”,
CLEO/QELS: 2010 Laser Science to Photonic Applications (2010/5/17) 【招待】

Hidetoshi Katori:
“Five years’ progress in optical lattice clocks”,
2010 International Symposium on Physics of Quantum Technology (2010/4/9) 【招待】

Ichiro Ushijima, Isao Yoshimine, Tetsushi Takano, Masao Takamoto, and Hidetoshi Katori:
“Laser and evaporative cooling toward Fermi Degenerate 87Sr”,
2010 International Symposium on Physics of Quantum Technology, 8TH-14 (2010/4/8) 【ポスター】

Masao Takamoto, Tetsushi Takano, and Hidetoshi Katori:
“Frequency comparison between two optical lattice clocks”,
2010 International Symposium on Physics of Quantum Technology, 8TH-14 (2010/4/8) 【ポスター】

Tetsushi Takano, Kenichiro Totsuka, Masao Takamoto, and Hidetoshi Katori:
“Improvement of frequency uncertainty of 3D bosonic optical lattice clock towards 10-16 uncertainty”,
2010 International Symposium on Physics of Quantum Technology, 8TH-14 (2010/4/8) 【ポスター】

Hidekazu Hachisu, Masao Takamoto and Hidetoshi Katori:
“Measurement of the blackbody radiation shift using a cryogenic Sr optical lattice clock”,
2010 International Symposium on Physics of Quantum Technology, 8TH-14 (2010/4/8) 【ポスター】

Koji Hashiguchi, Hidekazu Hachisu, Yoshiaki Nakajima, Hajime Inaba, Masao Takamoto. and Hidetoshi Katori:
“Magneto-Optical Trapping of Sr atoms on the 3P2-3D3 transition at 2.9 mm”,
2010 International Symposium on Physics of Quantum Technology, 8TH-12 (2010/4/8) 【ポスター】