TOSHIBA
15.9.2022 17:24:35 CEST | Business Wire | Press release
Researchers at Toshiba Corporation (TOKYO: 6502) have achieved a breakthrough in quantum computer architecture: the basic design for a double-transmon coupler that will improve the speed and accuracy of quantum computation in tunable couplers. The coupler is a key device in determining the performance of superconducting quantum computers.
This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20220913006341/en/
Conceptual diagram of a superconducting quantum computer (Graphic: Business Wire)
Tunable couplers in a superconducting quantum computer link two qubits and perform quantum computations by turning on and off the coupling between them. Current technology can turn off the coupling of transmon qubits with close frequencies, but this is prone to crosstalk errors that occur on one of the qubits when the other qubit is irradiated with electromagnetic waves for control. In addition, current technology cannot completely turn off coupling for qubits with significantly different frequencies, resulting in errors due to residual coupling.
Toshiba has recently devised a double-transmon coupler that can completely turn on and off the coupling between qubits with significantly different frequencies. Completely turning on enables high-speed quantum computations with strong coupling, while completely turning off eliminates residual coupling, which improves quantum computation speeds and accuracy. Simulations with the new technology have shown it realizes two-qubit gates, basic operations in quantum computation, with an accuracy of 99.99% and a processing time of only 24 ns.
Toshiba’s double-transmon coupler can be applied to fixed-frequency transmon qubits, realizing high stability and ease of design. It is the first to realize coupling between fixed-frequency transmon qubits with significantly different frequencies that can be completely switched on and off, and to deliver a high-speed, accurate two-qubit gate.
The technology is expected to advance the realization of higher-performance quantum computers that will contribute in such areas as the achievement of carbon neutrality and the development of new drugs. Details of the technology were published in the United States on September 15 in the Physical Review Applied, a journal of the American Physical Society (https://doi.org/10.1103/PhysRevApplied.18.034038).
The full release: https://www.global.toshiba/ww/technology/corporate/rdc/rd/topics/22/2209-01.html
About Toshiba
Toshiba Corporation leads a global group of companies that combines knowledge and capabilities from over 140 years of experience in a wide range of businesses—from energy and social infrastructure to electronic devices—with world-class capabilities in information processing, digital and AI technologies. These distinctive strengths support Toshiba’s continued evolution toward becoming an Infrastructure Services Company that promotes data utilization and digitization, and one of the world’s leading cyber-physical-systems technology companies. Guided by the Basic Commitment of the Toshiba Group, “Committed to People, Committed to the Future,” Toshiba contributes to society’s positive development with services and solutions that lead to a better world. The Group and its 120,000 employees worldwide secured annual sales of 3.3 trillion yen (US$27.4 billion) in fiscal year 2021.
Find out more about Toshiba at www.global.toshiba/ww/outline/corporate.html
To view this piece of content from cts.businesswire.com, please give your consent at the top of this page.
View source version on businesswire.com: https://www.businesswire.com/news/home/20220913006341/en/
About Business Wire
Subscribe to releases from Business Wire
Subscribe to all the latest releases from Business Wire by registering your e-mail address below. You can unsubscribe at any time.
Latest releases from Business Wire
Takeda Announces New Assignments of Directors and Appointment of Julie Kim as Representative Director, President and CEO24.6.2026 09:05:00 CEST | Press release
Board of Directors appoints Julie Kim as Representative Director, President & CEO following shareholder vote Announces new appointments and assignments of directors In the final step of its 18-month CEO transition, Takeda (TOKYO:4502/NYSE:TAK) today announced that Julie Kim was officially appointed Takeda’s Representative Director, President and Chief Executive Officer. During the 150th Annual General Meeting of Shareholders, which took place in Osaka, Japan, shareholders elected Julie as a new internal director to the Board of Directors. Following the vote and conclusion of the meeting, the Board of Directors appointed her as Representative Director, President & CEO. Upon conclusion of the meeting, former president & CEO Christophe Weber retired from the Company and the Board. Chair of the Board of Directors Meeting, Masami Iijima, commented: “On behalf of Takeda’s Board of Directors, I would like to congratulate Julie Kim on becoming Takeda’s President and CEO. The Board of Directors
LTM Joins Athena, a Chainguard-led Industry Coalition to Help Secure Open Source Software in the AI Era24.6.2026 08:30:00 CEST | Press release
LTM, the Business Creativity partner to the world’s largest enterprises, has joined Athena, a new industry coalition led by Chainguard, focused on protecting open source software from the rising threat of AI-driven vulnerabilities. Athena brings together leading organizations across the global software ecosystem to address an urgent challenge. As frontier AI models advance, they are increasingly capable of identifying novel vulnerabilities in open source software at machine speed, often faster than traditional disclosure and patching processes can respond. As AI accelerates both software development and the discovery of vulnerabilities, the window between a flaw being identified and being exploited has narrowed sharply. Athena is designed to close this gap through shared intelligence, coordinated action, and pre-disclosure remediation across the ecosystem. The coalition supports vulnerability management end to end, from discovery and analysis to patching, layered mitigations, and upstr
Over Half of Consumers Will Pay More for Brands That Are Transparent About AI Data Use, New Usercentrics Research Finds24.6.2026 08:30:00 CEST | Press release
52% of consumers globally will pay a 7% premium for AI transparency — rising to 73% in Germany. Almost half have already taken an action with a direct revenue consequence. AI transparency has become a commercial differentiator, and it's reshaping where brand revenue is won — or lost. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260623804294/en/ Over half (52%) of consumers globally will pay more for brands that are transparent about how they use AI with their data at an average 7% premium. In Germany, that figure rises to 73% of consumers willing to pay a 9% premium, the highest of any market. The finding comes from the second annual State of Digital Trust 2026 Report, commissioned by Usercentrics, a leading data privacy technology company, and conducted by Sapio Research across 11,000 consumers in seven markets. The opportunity for brands that act is matched by the cost of inaction. Almost half (47%) of consumers surveyed
Ilkari Expands European Sovereign Infrastructure Operations With Integration of DC North in Croatia24.6.2026 08:00:00 CEST | Press release
Expansion strengthens Ilkari’s multi-region sovereign infrastructure footprint with EU-based operational capacity, DORA-aligned resilience and sovereign cloud capabilities Croatia's largest carrier-neutral 4 MW data centre, DC North, becomes part of Ilkari's European sovereign infrastructure operations The integration adds operational EU-based data centre capacity, carrier-neutral connectivity and sovereign cloud capabilities across Central and Eastern Europe Expansion enhances Ilkari’s ability to serve regulated, sovereignty-focused and data-intensive enterprise environments across Europe Ilkari, a multinational sovereign infrastructure provider, today announced the integration of DC North in Croatia into its European operations, expanding its sovereign infrastructure footprint across the European Union and strengthening its multi-region platform, which includes existing operations in Iceland and Colombia. This press release features multimedia. View the full release here: https://www
Tigo Energy Predict+ Forecasting Platform Helps YASNO Keep Energy Flowing in Ukraine24.6.2026 06:00:00 CEST | Press release
Advanced energy prediction platform, Predict+, enables Ukrainian utility to better maintain grid service through demand surges, highly variable weather, and infrastructure disruptions. Tigo Energy, Inc. (NASDAQ: TYGO) (“Tigo” or “Company”), a leading provider of intelligent solar and energy software solutions, today announced that Ukrainian electric utility, YASNO, is the latest enterprise-tier customer to deploy the Tigo Predict+ platform. The AI Energy platform empowers utility operators to adapt to real-world demand challenges as they balance renewable and baseload generation sources. Predict+ currently manages more than 650 GWh and delivers 97.5% forecast accuracy for utility customers. As the leading provider of electricity, gas, and energy-efficiency solutions in Ukraine, YASNO serves more than 2.5 million households in the Kyiv, Dnipropetrovsk, and Donetsk regions, as well as more than 64,000 business customers. YASNO uses the Predict+ platform in ways that go far beyond typical
In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.
Visit our pressroom