An international workshop on optical lattice clocks is held on December 3, 2020.
It will be an epoch-making workshop for the practical application of optical lattice clocks.

Last update: December 24, 2020

News & Topic:    
 11/21 - Presentation 2 speaker has been changed to Dr. Richard Hobson of National Physical Laboratory.
 11/27 - You will receive a ZOOM access email to participate by online in the 12/3 workshop.
 12/ 2  - The resistration deadline for this workshop is 21:00(JST) [12:00(GMT), 13:00(CET)] on December 2nd.
 12/ 3  - The workshop was successfully completed. Thank you very much for your participation! 
 12/ 5  - We would like to thank the 135 people who participated in discussing the forefront of optical lattice clocks.      
 12/24 - Presentation materials are now available for download. Please refrain from transferring the materials to non-participants.

◆ Date and Venue

Date December 3, 2020
Time 17:00-20:05(JST), 8:00-11:05(GMT), 9:00-12:05(CET)
Venue Online & Hall (University of Tokyo, Japan)

◆ Program

Time Program
chairperson :
   Tetsuya Ido (National Institute of Information and Communications Technology)
17:00 - 17:05 (JST)
08:00 - 08:05 (GMT)
09:00 - 09:05 (CET)
Opening address
Yasushi Ogasaka (Director, Japan Science and Technology Agency)
17:05 - 17:35 (JST)
08:05 - 08:35 (GMT) 09:05 - 09:35 (CET)
Greetings and Presentation 1 (5min. + 20min. + 5min. discussion)
Hidetoshi Katori (The University of Tokyo & RIKEN)
"Optical Lattice Clocks: Choice of atomic elements for science and practicality"
17:35 - 18:00 (JST)
08:35 - 09:00 (GMT) 09:35 - 10:00 (CET)
Presentation 2 (20min. + 5min. discussion)
Richard Hobson (National Physical Laboratory)
"Comparing optical clocks and improving frequency stability using quantum non-demolition measurement "
18:00 - 18:25 (JST)
09:00 - 09:25 (GMT) 10:00 - 09:25 (CET)
Presentation 3 (20min. + 5min. discussion)
Uwe Sterr (Physikalisch-Technische Bundesanstalt)
"Ultra stable lasers"
Christian Lisdat (Physikalisch-Technische Bundesanstalt)
"Measurements with Sr lattice clocks at PTB"
18:25 - 18:35 (JST)
09:25 - 09:35 (GMT) 10:25 - 10:35 (CET)

chairperson :
   Masami Yasuda (National Institute of Advanced Industrial Science and Technology)
18:35 - 19:00 (JST)
09:35 - 10:00 (GMT) 10:35 - 11:00 (CET)
Presentation 4 (20min. + 5min. discussion)
Tetsuomi Sogawa (Senior Vice President, The Nippon Telegraph and Telephone Corporation)
"Ultrastable cascaded optical frequency distribution towards telecom-fiber-based optical lattice clock network"
19:00 - 19:25 (JST)
10:00 - 10:25 (GMT) 11:00 - 11:25 (CET)
Presentation 5 (20min. + 5min. discussion)
Stephan Schiller (Universität Düsseldorf)
"Space time comparisons and test of fundamental physics"
19:25 - 19:50 (JST)
10:25 - 10:50 (GMT) 11:25 - 11:50 (CET)
Presentation 6 (20min. + 5min. discussion)
Yoshiyuki Tanaka (The University of Tokyo)
"Relativistic geodesy using optical lattice clock and its application to seismological and volcanological studies"
19:50 - 20:05 (JST)
10:50 - 11:05 (GMT) 11:50 - 12:05 (CET)
Closing remarks
Kai Bongs (University of Birmingham)
"Innovation opportunities and closing remarks"

◆ About the Online Workshop

Copyright Information Please be sure to read and agree to the contents before registration.
・Do not record/capture (including screen capture), save, or redistribute the screen of the presentations conducted on this workshop.
・Do not convey limited information (URL, ID number, etc.) regarding this conference to a third partys.
Participation by online Zoom webinar will be used.
・All attendees of the workshop online will be emailed with the URL, ID and password for their Zoom webinar connection.
・If you attend the workshop online, you can participate in the discussion by chat.
・Participants who only attend the lecture will not share the camera image of the computer.
Presentation Please make your presentation punctual (25 minutes presentation and 5 minutes discussion).
・Speakers should visit the ZOOM homepage below and install the application on their PC in advance to know how to use it.
・Speakers should participate in the connection test to see your connection to ZOOM and check the presentation. We will send you the information individually.
・Speakers should start their presentation using ZOOM screen sharing.
Security measures Speakers are aware of the following points when making your presentation.
・In an Online workshop, the risk that a presentation material will be recorded or shot by a third partys is higher than in a regular conference.
・Presenters should pay attention to the copyright of the materials used in the presentation, and the presenter should deal with them individually. Workshop secretariat does not deal with any copyright issues regarding the materials used in the presentation.

◆ Registration (Closed)

Please access the following site and register.
Deadline: December 2, 2020 [21:00(JST), 12:00(GMT), 13:00(CET)]
Zoom Connection information: from November 26, 2020 [by email]  
URL map 
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◆ Contact

Address 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-8656, JAPAN
Faculty of Engineering Bldg.9 Katori Laboratory
Room no.505 
e-mail  jst.katori.hq(at)
Telephone Tel: +81-3-5841-6845
Fax: +81-3-5841-6859