iTHEMS–NCTS 2025
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The 2nd iTHEMS–NCTS Joint Workshop (2025)

Matters to Spacetime: Symmetries & Geometry

August 18–21, 2025 • Okochi Hall, RIKEN Wako Campus, Japan

Dates
Aug 18–21, 2025
Venue
Okochi Hall, RIKEN Wako
Plenary Speakers
Ryu • Nomura • Nagaosa • Kawai • Tsai
Poster + Banquet
Poster (Day 2, 2:00 PM) • Banquet (Day 3, 6:00 PM)

Workshop Overview

The Interdisciplinary Theoretical and Mathematical Sciences Center (iTHEMS) at RIKEN and the National Center for Theoretical Sciences (NCTS) continue to strengthen their collaboration following the 2022 Memorandum of Understanding. Building on the success of our previous joint workshop, this second edition expands our focus across condensed matter physics and high-energy physics, including quantum gravity.

The workshop features plenary talks, invited presentations, and a poster session, encouraging interdisciplinary exchange and supporting the next generation of researchers.

Poster Session

Day 2 (Aug 19), 14:00–17:30. 100-second oral introductions in Okochi Hall followed by posters on 3F & 4F of the main research building. A0-size posters are not required; multiple A4 sheets are acceptable.

Talk Broadcast (Zoom)

Join Zoom Meeting

Meeting ID: 927 6864 0463

Passcode: 856085

Dates & Venue

Dates

August 18–21, 2025

Venue

Okochi Hall, RIKEN Wako Campus, Japan

Plenary Speakers

Shinsei Ryu
Princeton University
Yasunori Nomura
UC Berkeley
Naoto Nagaosa
RIKEN CEMS
Hikaru Kawai
National Taiwan University
Chung-Jun Tsai
National Taiwan University

Invited Speakers

Japan
  • Shuntaro Aoki (RIKEN iTHEMS)
  • Kyosuke Adachi (RIKEN BDR & iTHEMS)
  • Che-Yu Chen (RIKEN iTHEMS)
  • Yuta Hamada (KEK)
  • Dongwook Ghim (RIKEN iTHEMS)
  • Masamichi Miyaji (RIKEN iTHEMS & Kyoto Univ.)
  • Ken Mochizuki (Univ. of Tokyo)
  • Yasha Neiman (OIST)
  • Kantaro Ohmori (Univ. of Tokyo)
  • Taketo Sano (RIKEN iTHEMS)
  • Sotaro Sugishita (Kyoto Univ. & RIKEN iTHEMS)
  • Akinori Tanaka (RIKEN AIP & iTHEMS)
Taiwan
  • Po-Yao Chang (NTHU)
  • Tay-Rong Chang (NCKU)
  • Shun-Jen Cheng (NYCU)
  • Chung-Hou Chung (NYCU)
  • Chang-Tse Hsieh (NTU)
  • Guang-Yu Guo (NTU)
  • Chong-Sun Chu (NTHU)
  • Pei-Ming Ho (NTU)
  • Yu-Tin Huang (NTU)
  • Norihiro Iizuka (NTHU)

Program

Plenaries, invited talks, poster session, and banquet. See the full timetable.

Day 1 — Mon, Aug 18
  • 10:10–11:10 Plenary: Naoto Nagaosa
  • 11:30–12:30 Interdisciplinary Talks
  • PM High-Energy & Gravity
Day 2 — Tue, Aug 19
  • 9:30–10:30 Plenary: Yasunori Nomura
  • 11:00-12:00 High-Energy & Gravity
  • 14:00–15:00 100-sec Poster Intro
  • 15:00–17:00 Poster Session
Day 3 — Wed, Aug 20
  • 9:30–10:30 Plenary: Hikaru Kawai
  • 11:00-12:00 High-Energy & Gravity
  • 13:30-16:00 Condensed Matter
  • 16:30–17:30 Plenary: Shinsei Ryu
  • 18:00–20:00 Banquet
Day 4 — Thu, Aug 21
  • 9:30-12:00 Condensed Matter
  • 13:40-14:10 Math
  • 14:10–15:10 Plenary: Chung-Jun Tsai
  • 15:15–15:25 Closing Remarks
Workshop Photo

Organizing Committee

Advisory

  • RIKEN: Director Satoshi Iso, Tsukasa Tada
  • NCTS: Director Guang-Yu Guo, Chong-Sun Chu, Pei-Ming Ho

Members

  • RIKEN: Ching-Kai Chiu, Masazumi Honda, Che-Yu Chen, Yuki Yokokura
  • NCTS: Chang-Tse Hsieh, Yang-Hao Chan
  • Host Secretary: Tomoko Iwanami