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Quantum ICT Laboratory

Feb.18, 2022
(Japanese version released on Jan.14,2022)

Successful Joint Verification Test for Low Latency Transmission of Highly Confidential Data Using Quantum Cryptography for Large-volume Financial Transaction Data

TOKYO-Nomura Holdings, Inc. (President and Group CEO, Kentaro Okuda, hereinafter Nomura HD), Nomura Securities Co., Ltd. (Representative Director and President, Kentaro Okuda, hereinafter Nomura Securities), National Institute of Information and Communications Technology (President, Hideyuki Tokuda, Ph.D., hereinafter NICT), Toshiba Corporation (Representative Executive Officer and President and Chief Executive Officer, Satoshi Tsunakawa, hereinafter Toshiba), and NEC Corporation (President and CEO, Takayuki Morita, hereinafter NEC) have jointly verified the effectiveness and practicality of quantum cryptography for future social implementation using stock trading operations as a use case, where high-speed, large-volume, low-latency data transmission is strictly required. The test which started in December 2020 is the first in Japan to verify the low-latency and large-volume transmission tolerance of highly secure data transmission conforming to the message transmission format (FIX format), which is a standard format used in actual stock trading operations. As a result, in our assumed use case, we were able to confirm the following two points: (i) the throughput is maintained at a level of a conventional system, even if quantum cryptography is applied, and (ii) even if a large number of stock orders are placed, highly secure and high-speed quantum cryptographic communication can be realized without depleting cryptographic keys. The success of this test is expected to accelerate the social implementation of quantum cryptography, including a broad range of sectors other than finance.
The test was conducted as part of the Cross-ministerial Strategic Innovation Promotion Program (SIP) "Photonics and Quantum Technology for Society 5.0" (Funding Agency: National Institutes for Quantum Science and Technology) led by the Cabinet Office.

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Quantum ICT Laboratory

Oct.7,2021
(Japanese version released on Aug. 26, 2021)

Toshiba, ToMMo, Tohoku University Hospital, and NICT Demonstrate the Use of Quantum Cryptography Communication and Secret Sharing Technologies for Distributed Storage of Genome Analysis Data

-Contributing to safe data management in the fields of genomic research and medicine-

Toshiba Corporation, Tohoku University Tohoku Medical Megabank Organization (ToMMo), Tohoku University Hospital, and the National Institute of Information and Communications Technology (NICT) have developed a distributed storage technology that combines quantum cryptography communication and secret sharing technologies, successfully demonstrating the world’s first experimental large-scale1 genome analysis data backup to multiple sites2. These technologies will allow data backup that prevents data leaks and tampering over long periods and are expected to contribute to safe data management in the fields of genomic research and medicine.
A part of this work was performed for Council for Science, Technology and Innovation (CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP), “Photonics and Quantum Technology for Society 5.0” (Funding agency: QST). Toshiba, ToMMo, Tohoku University Hospital, and NICT will present the details of these technologies and their experimental demonstration at the 11th International Conference on Quantum Cryptography (QCrypt 2021).

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Quantum ICT Laboratory,Superconductive ICT Device Laboratory

Sep.20,2021

All-nitride Superconducting Qubit Made on a Silicon Substrate

- New material platform for large-scale integration of superconducting qubits -

Researchers at the National Institute of Information and Communications Technology (NICT, President: TOKUDA Hideyuki, Ph.D.), in collaboration with researchers at the National Institute of Advanced Industrial Science and Technology (AIST, President: Dr. ISHIMURA Kazuhiko) and the Tokai National Higher Education and Research System Nagoya University (President: Dr. MATSUO Seiichi) have succeeded in developing an all-nitride superconducting qubit using epitaxial growth on a silicon substrate that does not use aluminum as the conductive material. This qubit uses niobium nitride (NbN) with a superconducting transition temperature of 16 K (-257 °C) as the electrode material, and aluminum nitride (AlN) for the insulating layer of the Josephson junction. It is a new type of qubit made of all-nitride materials grown epitaxially on a silicon substrate and free of any amorphous oxides, which are a major noise source. By realizing this new material qubit on a silicon substrate, long coherence times have been obtained: an energy relaxation time (T1) of 16 microseconds and a phase relaxation time (T2) of 22 microseconds as the mean values. This is about 32 times T1 and about 44 times T2 of nitride superconducting qubits grown on a conventional magnesium oxide substrate. By using niobium nitride as a superconductor, it is possible to construct a superconducting quantum circuit that operates more stably, and it is expected to contribute to the development of quantum computers and quantum nodes as basic elements of quantum computation. We will continue to work on optimizing the circuit structure and fabrication process, and we will proceed with research and development to further extend the coherence time and realize large-scale integration. These results were published in the British scientific journal "Communications Materials" on September 20, 2021 at 18:00 (Japan standard time). ・・・read more

Memory Neurobiology Project

Aug.11,2021
(Japanese version released on Aug.5,2021)

Neural Correlate of Pavlovian Conditioning

-Hijacking the command neuron governs Pavlovian conditioning-

The group lead by Executive Researcher, YOSHIHARA Motojiro, and Senior Researcher, SAKURAI Akira, at the National Institute of Information and Communications Technology, Kobe (NICT, President: TOKUDA Hideyuki, Ph.D.) unraveled a neural correlate of Pavlovian conditioning. The feeding command neuron, which was discovered by the same group in the brain of fruit flies (Nature, 2013)1, was found to be hijacked by an originally-independent stimulus, leading to the conditioned response. Furthermore, the experimental system of Pavlovian conditioning made possible real-time observation of cell-cell connection for memory formation.
These results were published in Current Biology at 11 AM on August 4 (US Eastern Standard Time) in 2021. ・・・read more

Quantum ICT Advanced Development Center

Jan.18,2021
(Japanese version released on Dec.21,2020)

Beginning Joint Verification Tests on Quantum Cryptography Technology to Enhance Cybersecurity in the Financial Sector

-Testing practicality in large-capacity and low-latency communications in stock transactions-

TOKYO?Nomura Holdings, Inc. (Representative Executive Officer and President, Kentaro Okuda, hereinafter “Nomura HD”), Nomura Securities Co., Ltd. (Representative Director and President, Toshio Morita, hereinafter “Nomura Securities”), National Institute of Information and Communications Technology (President, Hideyuki Tokuda, Ph.D. hereinafter “NICT”), Toshiba Corporation (Representative Executive Officer and President and CEO, Nobuaki Kurumatani), and NEC Corporation (President and CEO, Takashi Niino, hereinafter “NEC”) will jointly verify the effectiveness and practicality of quantum cryptography technology in order to strengthen the security of data communications and storage in the financial sector. The tests will commence in December 2020. ・・・read more

Quantum ICT Advanced Development Center

Nov.20,2020
(Japanese version released on Oct.22,2020)

NEC, NICT and ZenmuTech use quantum cryptography to encrypt, transmit and backup electronic medical records

-Achieving secure and real-time cross-references between medical institutions-

Tokyo, October 22, 2020 - NEC Corporation (NEC), National Institute of Information and Communications Technology (NICT) and ZenmuTech, Inc have succeeded in demonstrating a system that uses quantum cryptography to encrypt and securely transmit dummy electronic medical records compatible with SS-MIX standardized storage and to back the data up with a secret sharing technology over a wide area network. In addition, the cross-referencing of dummy data between this system and Kochi Health Sciences Center has also been demonstrated. ・・・read more

Quantum ICT Advanced Development Center

Oct.19,2020

Toppan, NICT, QunaSys, and ISARA Launch Collaboration to Establish Quantum Secure Cloud Technology

Secure communication, storage, and use of data enabled by quantum computing and quantum cryptography technologies

Tokyo — October 19, 2020 — Toppan Printing (Toppan) (TSE:7911), the National Institute of Information and Communications Technology (NICT), QunaSys Corporation (QunaSys), and ISARA Corporation (ISARA) have announced the launch of a collaboration targeting the establishment of quantum secure cloud technology that will enable advanced information processing and secure communication, storage, and use of data.・・・read more

Frontier Research laboratory Superconductive Device Project

Sep.16,2020

Development of High-sensitivity, Wide-IF Band Heterodyne Receiver in Terahertz Frequency Range

-Realized by NICT's original superconducting device structure using magnetic materials-

The National Institute of Information and Communications Technology (NICT, President: TOKUDA Hideyuki, Ph.D.) has developed a unique superconducting hot electron bolometer mixer (HEBM) using magnetic materials. As a result, the noise of the 2 THz band heterodyne receiver has been reduced and the wide IF band has been achieved. The 2 THz band HEBM produced this time has a low noise performance of about 570 K (DSB), which is about 6 times the quantum noise limit, and a wide IF band characteristic of about 6.9 GHz, which is about 3 GHz larger than the conventional structure HEBM. Both of these are world-class performance.・・・read more