News7News 7
HomeNewsSuccessful demonstration of a superconducting circuit for qubit control within large-scale quantum computer systems

Successful demonstration of a superconducting circuit for qubit control within large-scale quantum computer systems

by News7
Successful demonstration of a superconducting circuit for qubit control within large-scale quantum computer systems
– Density of qubit-controlling-signals per cable may increase by approximately 1,000 times –

– The size of conventional transmission paths for qubit-controlling-signals limits the number of controllable qubits
– A superconducting circuit that can control multiple qubits via a single cable has been proposed and demonstrated, whereas conventional technology requires each qubit to be controlled via a separate cable
– Development of large-scale quantum computers to be accelerated by the proposed circuit

TOKYO, June 3, 2024 – (JCN Newswire) – In support of the development of large-scale superconducting quantum computers, researchers with the National Institute of Advanced Industrial Science and Technology (AIST), one of the largest public research organizations in Japan, in collaboration with Yokohama National University, Tohoku University, and NEC Corporation, proposed and successfully demonstrated a superconducting circuit that can control many qubits at low temperature.

To realize a practical quantum computer, it is necessary to control the state of a huge number of qubits (as many as one million) operating at low temperature. In conventional quantum computers, microwave signals for controlling qubits are generated at room temperature and are individually transmitted to qubits at low temperature via different cables. This results in numerous cables between room and low temperature and limits the number of controllable qubits to approximately 1,000.In this study, a superconducting circuit that can control multiple qubits via a single cable using microwave multiplexing was successfully demonstrated in proof-of-concept experiments at 4.2 K in liquid helium. This circuit has the potential of increasing the density of microwave signals per cable by approximately 1,000 times, thereby increasing the number of controllable qubits significantly and contributing to the development of large-scale quantum computers.The above results will be published in “npj Quantum Information” on June 3 at 10 a.m. London time.

Article Information
Journal: npj Quantum Information
Title: Microwave-multiplexed qubit controller using adiabatic superconductor logic
Authors: Naoki Takeuchi, Taiki Yamae, Taro Yamashita, Tsuyoshi Yamamoto, and Nobuyuki Yoshikawa
DOI: 10.1038/s41534-024-00849-2

About NEC CorporationNEC Corporation has established itself as a leader in the integration of IT and network technologies while promoting the brand statement of “Orchestrating a brighter world.” NEC enables businesses and communities to adapt to rapid changes taking place in both society and the market as it provides for the social values of safety, security, fairness and efficiency to promote a more sustainable world where everyone has the chance to reach their full potential. For more information, visit NEC at https://www.nec.com.


Topic: Press release summary


Source: NEC Corporation

Sectors: Electronics

http://www.acnnewswire.com

From the Asia Corporate News Network

Copyright © 2024 ACN Newswire. All rights reserved. A division of Asia Corporate News Network.

NEC Corporation
May 28, 2024 19:20 HKT/SGT
Celonis and NEC begin Proof of Concept Integrating Generative AI and Process Intelligence
May 23, 2024 10:20 HKT/SGT
NEC X Invests in Agtech Startup Verdi, Integrates AI-Powered Platform with NEC’s Cropscope Smart Farming Initiative
May 17, 2024 10:19 HKT/SGT
NEC Leverages RISE with SAP and AI to Build Business AI in Move to the Cloud
May 8, 2024 09:24 HKT/SGT
NEC X Invests in Public Safety Startup Multitude Insights, Scaling AI-Powered Collaboration and Information Sharing for Law Enforcement
Apr 24, 2024 12:25 HKT/SGT
NEC Develops High-speed Generative AI Large Language Models (LLM) with World-class Performance
Apr 22, 2024 14:09 HKT/SGT
NEC Strengthens Commitment to Space Industry with Investment in Seraphim Space Venture Fund II
Apr 11, 2024 14:10 HKT/SGT
DOCOMO, NTT, NEC and Fujitsu Develop Top-level Sub-terahertz 6G Device Capable of Ultra-high-speed 100 Gbps Transmission
Apr 10, 2024 12:36 HKT/SGT
Transgene and NEC Present First Clinical Benefits of Neoantigen Cancer Vaccine, TG4050, in Head & Neck Cancer at AACR 2024
Apr 8, 2024 12:45 HKT/SGT
NEC white paper proposes comprehensive process workflow for the application of AI-driven personalized cancer vaccines
Mar 25, 2024 09:08 HKT/SGT
NEC develops marketing strategy planning & effectiveness simulation technology using generative AI
More news>>

Source : ACN Newswire

You may also like

12345678............................................................................................................................................+