Announced details
Quantum chemistry calculations, ground-state calculations, materials development, and materials calculations and simulations
In a 16-spin one-dimensional Heisenberg model, the required computational cost was reduced to approximately 1/140.
Quemix and the three counterparties conducted joint research. Quemix is a consolidated subsidiary of TerraSky Co.,Ltd. Capital, personnel and business relationships with the counterparties are Not disclosed.
TOYOTA MOTOR CORPORATION (head office: Toyota, Aichi Prefecture; representative: Kon Kenta (近健太)), Toyota Central R&D Labs., Inc. (head office: Nagakute, Aichi Prefecture; representative director, president and CRO: Shimazu Takashi (志満津孝)), and The University of Tokyo (location: Bunkyo-ku, Tokyo; president: Fujii Teruo (藤井輝夫)). Other attributes are Not disclosed.
PITE® is patented (patent number, registration date and validity period are Not disclosed)
Quemix: Nihonbashi, Chuo-ku, Tokyo; TerraSky Co.,Ltd: Chuo-ku, Tokyo; TOYOTA MOTOR CORPORATION: Toyota, Aichi Prefecture; Toyota Central R&D Labs., Inc.: Nagakute, Aichi Prefecture; The University of Tokyo: Bunkyo-ku, Tokyo
In this announcement the company addresses none of Contract Value / Offering price / Impact on Business Performance.
Q2B 2026 Tokyo (research results scheduled to be presented on 4-5 June 2026)
| Item | Details |
|---|---|
| Names of Products / Services Covered | Probabilistic imaginary-time evolution method (PITE®), Density matrix renormalization group method (DMRG), Quantum chemistry calculations using a classical-quantum hybrid computer |
| Counterparty | TOYOTA MOTOR CORPORATION, Toyota Central R&D Labs., Inc., Graduate School of Science, The University of Tokyo |
| Counterparty overview | TOYOTA MOTOR CORPORATION (head office: Toyota, Aichi Prefecture; representative: Kon Kenta (近健太)), Toyota Central R&D Labs., Inc. (head office: Nagakute, Aichi Prefecture; representative director, president and CRO: Shimazu Takashi (志満津孝)), and The University of Tokyo (location: Bunkyo-ku, Tokyo; president: Fujii Teruo (藤井輝夫)). Other attributes are Not disclosed. |
| Relationship with the Company | Quemix and the three counterparties conducted joint research. Quemix is a consolidated subsidiary of TerraSky Co.,Ltd. Capital, personnel and business relationships with the counterparties are Not disclosed. |
| Applicable area | Quantum chemistry calculations, ground-state calculations, materials development, and materials calculations and simulations |
| Registration number and expiry date | PITE® is patented (patent number, registration date and validity period are Not disclosed) |
| Location | Quemix: Nihonbashi, Chuo-ku, Tokyo; TerraSky Co.,Ltd: Chuo-ku, Tokyo; TOYOTA MOTOR CORPORATION: Toyota, Aichi Prefecture; Toyota Central R&D Labs., Inc.: Nagakute, Aichi Prefecture; The University of Tokyo: Bunkyo-ku, Tokyo |
| Quantitative Effects | In a 16-spin one-dimensional Heisenberg model, the required computational cost was reduced to approximately 1/140. |
| Source | Q2B 2026 Tokyo (research results scheduled to be presented on 4-5 June 2026) |
Items this document does not state (9)
These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.
The reasons the company gives
The company's own explanation, not something inferred from the numbers.The method first creates an initial state as close as possible to the ground state using a classical computer, then assigns the remaining calculations to a quantum computer, taking advantage of the strengths of both devices to improve overall computational efficiency.