Perspective on Time, Uncertainty and Quantum computation
Nishijin Plaza of Kyushu University in Fukuoka, Japan
December 8th to 11th, 2025
Scope
The main themes of the conference will include the theoretical foundations of time operators and uncertainty relations, as well as experimental implementations using quantum computers. Theoretical studies of the Rabi model will also be featured as one of the key topics, given its relevance as a foundational model in quantum computing.
In 2025, we commemorate the 100th anniversary of the discovery of the matrix mechanical formulation of quantum phenomena by Heisenberg, Born, and Jordan. This conference aims to foster multifaceted discussions, ranging from pure mathematics to experimental physics, on fundamental concepts in quantum mechanics such as time and measurement, as well as cutting-edge topics including quantum walks and quantum computers. By addressing a wide spectrum of themes -- including experimental verification of time operators, novel developments in measurement theory based on Ozawa inequality, the mathematics of quantum walks, quantum optics exemplified by the quantum Rabi model, and applications of quantum computing to quantum measurement theory. We hope to pave the way toward a new horizon in quantum mechanics.
1. Time Operators
- Spectral analysis of time operators and POVMs
- Experimental demonstration of the Arai-Miyamoto inequality
- Quantum-mechanical time-of-arrival problem
2. Ozawa Inequality and Quantum Measurement Theory
- Quantification of error and disturbance via quantum computing
- Experimental verification through weak measurement
3. Quantum Rabi Model
- Spectral analysis of the quantum Rabi model
- Applications to quantum simulations
4. Quantum Walks
- Implementation of quantum-computing algorithms via quantum walks
- Spectral theory and scattering theory
5. Quantum Computing
- Experimental test of the Ozawa inequality
- Experimental confirmation of the existence of time operators
- Fundamental theory of qubits and quantum gates
- Quantum simulations
Invited Speakers (Tentative)
- Braak, Daniel(Augsburg)
- Coppo, Alessandro(Rome)
- Emori, Haruki(Hokkaido / iTHEMS)
- Galapon, Eric(Philippines)
- Gea-Banacloche, Julio(Arkansas)
- Hasegawa, Yuji(Hokkaido / Wien)
- Ikeda, Tatsuhiko(ZEN / iTHEMS / Hokkaido)
- Ito, Etsuko(Kyoto)
- Kuramochi, Yui(Kyushu)
- Maccone, Lorenzo(Pavia)
- Nakatsugawa, Keiji(Tokyo)
- Ozawa, Masanao(Nagoya)
- Reyes Bustos, Cid(NTT)
- Richard, Serge(Nagoya)
- Sasaki, Itaru(Shinshu)
- Suzuki, Akito(Komatsu)
- Tanda, Satoshi(Hokkaido)
- Tajima, Hiroyasu(Kyushu)
- Yamamoto, Kazuhiro(Kyushu)
- Yoshino, Saori (Yokohama)
Registrations
Registrations are open through the Registration Form
Important Dates
July 25th, 2025 - Registration starts
Funding
This conference is supported by JSPS KAKENHI Grant-in-Aid for Scientific Research (A), Grant Number 25H00595, Principal Investigator: Fumio Hiroshima.
Contacts
For any inquiries contact us at imabayashi@math.kyuhsu-u.ac.jp
Organizing Committee
Fumio Hiroshima (Kyushu University)
Satoshi Tanda (Hokkaido University)
Masanao Ozawa (Nagoya University)
Yuji Hasegawa (Hokkaido University/TU Wien)