KAGRA Future Working Group 5th open meeting & Quantum probes for gravity workshop 2025
Contents
Meeting information
- Date : 2025/11/06 (Thu)
- Hybrid-style
- Venue : Room 207, Science Building #1 at Hongo Campus, The University of Tokyo
Access: UTokyo Access and Campus Maps page or Google Maps
- eduroam and UTokyo-Guest is available at the venue
ZOOM URL : https://u-tokyo-ac-jp.zoom.us/j/86245747610?pwd=JQqjafR5TMrATlLqOiSxWpDylZfYnb.1
Registration page: https://forms.gle/UdctGkhGRMHEjPYS7
Invited Speakers
- Jérôme Degallaix (Laboratoire des Matériaux Avancés)
- Youka Kaku (Kobe University)
Program (Japan Time)
09:30 |
Registration open (2000 JPY will be collected for banquet registrants) |
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Morning session chair : Ryosuke Sugimoto |
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09:58 |
Welcome |
Yuta Michimura |
2 min |
|
10:00 |
Optomechanical systems for testing gravity-induced entanglement |
Youka Kaku |
30+10 min |
|
10:40 |
Magnetically levitated oscillators for ultraprecise gravimeter |
Shilu Tian |
20+10 min |
|
11:10 |
Ultra-precise measurement landscape at Hongo |
Kentaro Komori |
20+10 min |
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11:40 |
Lunch break |
80 min |
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Afternoon session 2 chair : Kentaro Somiya |
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13:00 |
Introduction of LMA |
Jérôme Degallaix |
10+5 min |
|
13:15 |
Tiny mirrors |
David Hofman |
20+10 min |
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13:45 |
Polishing and characterisation of sapphire substrates for third-generation gravitational wave detectors in Lyon |
Severin Nadji |
20+10 min |
|
14:15 |
LMA and NAOJ coating mechanical loss at cryogenic temperatures |
Rikuto Watanabe, |
20+10 min |
|
14:45 |
Break |
30 min |
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Afternoon session 2 chair : Micheal Page |
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15:15 |
Characterization of silicon test mass with crystalline coatings in UWA |
Haoyu Wang (remotely) |
20+10 min |
|
15:45 |
Recent optimizations of sapphire bonding techniques: melting in a furnace and ultrafast laser welding |
Alexey Kuzmichev, |
20+10 min |
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16:15 |
Welding Experiments of KAGRA Sapphire Fibers at the University of Glasgow |
Munetake Otsuka (remotely) |
20+10 min |
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16:45 |
Demonstration of frequency dependent squeezing via quantum teleportation at ANU |
Ryo Iden (remotely) |
20+10 min |
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17:15 |
Free discussion |
30 min |
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18:00 |
Banquet at Matsumotoro (for banquet registrants only) |
120 min |
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Banquet information
Banquet will be held from 18:00 at Matsumotoro in Hongo Campus (3 minutes walk from the workshop venue).
- Because of reservation arrangements, the banquet will be open only to those who register by October 22, 2025.
- The meal will be provided free of charge, but a fee of 2000 JPY will be collected at the registration for drinks (CASH ONLY).
- If you have dietary restrictions, please let the organizers know via the registration page.
Participants
- As of October 22 (In-person: 33, Banquet: 32)
Name |
Affiliation |
In-person |
Banquet |
Chenjie Zhou |
NAOJ |
In-person |
Yes |
David Hofman |
CNRS |
In-person |
Yes |
Egami Taisei |
Science Tokyo |
In-person |
Yes |
Hinata Takidera |
The University of Tokyo |
In-person |
Yes |
Hiroaki Yamamoto |
Institute of Science Tokyo |
In-person |
Yes |
Hiroki Fujimoto |
NAOJ |
In-person |
Yes |
Homare Abe |
Science Tokyo |
In-person |
Yes |
Jerome Degallaix |
LMA - IP2I |
In-person |
Yes |
Kaido Suzuki |
Science Tokyo |
In-person |
Yes |
Kazuhiro Yamamoto |
University of Toyama |
In-person |
Yes |
Kentaro Komori |
University of Tokyo |
In-person |
Yes |
Kentaro Somiya |
Science Tokyo |
In-person |
Yes |
Kento Takeshita |
Science Tokyo |
In-person |
Yes |
Masaki Ando |
University of Tokyo |
In-person |
Yes |
Maxime LE JEAN |
Laboratoire des Matériaux Avancés / CNRS |
In-person |
Yes |
Michael Page |
NAOJ |
In-person |
Yes |
Naoki Aritomi |
University of Tokyo |
In-person |
Yes |
Nayuta Yoshitome |
Institute of Science Tokyo |
In-person |
Yes |
Riku Fujii |
Universal of Toyama |
In-person |
Yes |
Rikuto Watanabe |
University of Toyama |
In-person |
Yes |
Ryosuke Sugimoto |
UTokyo |
In-person |
Yes |
Severin Nadji |
Laboratoire des Matériaux Avancés (LMA) |
In-person |
Yes |
Shalika Singh |
ISCT |
In-person |
Yes |
Shilu Tian |
Science Tokyo |
In-person |
Yes |
Sotatsu Otabe |
The University of Tokyo |
In-person |
Yes |
Takuya Kawasaki |
University of Tokyo |
In-person |
Yes |
Tatsuya Sugioka |
U Tokyo |
In-person |
Yes |
Tomohiro Fujita |
Ochanomizu University |
In-person |
Yes |
Tomotada Akutsu |
National Astronomical Observatory of Japan |
In-person |
Yes |
Yohei Nishino |
NAOJ/U.Tokyo |
In-person |
Yes |
Youka Kaku |
Kobe University |
In-person |
Yes |
Yuta Michimura |
RESCEU, UTokyo |
In-person |
Yes |
Yoichi Aso |
ICRR |
In-person |
No |
Atsushi Nishizawa |
Hiroshima University |
Online |
No |
Dan Chen |
NAOJ |
Online |
No |
Haoyu Wang |
Institute of Science Tokyo |
Online |
No |
Jheng-Min Chen |
National Yang Ming Chiao Tung University |
Online |
No |
Kouji Nakamura |
NAOJ, GWSP |
Online |
No |
Masatake Ohashi |
ICRR |
Online |
No |
Osamu Miyakawa |
ICRR U-Tokyo |
Online |
No |
Ray-Kuang Lee |
NTHU |
Online |
No |
Ryo Iden |
Institute of Science Tokyo |
Online |
No |
Ryutaro Takahashi |
NAOJ |
Online |
No |
Satoru Takano |
Max-Planck Institute for Gravitational Physics |
Online |
No |
Subaru Shibai |
U-tokyo, ISAS |
Undecided |
No |
Yuheng Ye |
NAOJ/U.Tokyo |
Undecided |
No |
Support
- The workshop is supported by:
JST ASPIRE-GW (PI: Kentaro Somiya, Co-I: Masaki Ando)
- JSPS Bilateral Collaborations, Joint Research between France (MEAE-MESRI) and Japan (Sakura Program) (PI: Jérôme Degallaix, Yuta Michimura)
- JSPS KAKENHI No. JP20H05854 (PI: Yuta Michimura, Co-Is: Tomohiro Fujita, Shinji Miyoki, Matteo Leonardi)