The Government Circuit: Driving Resiliency and Economic Security on Both Sides of the Atlantic
American Made Advocacy: Taking the Fight to Capitol Hill
Defense Speak Interpreted: SWaPing Nanosatellites for Defense SystemsSuccessful Demonstration of a Superconducting Circuit for Qubit Control within Large-scale Quantum Computer Systems
June 3, 2024 | JCN NewswireEstimated reading time: 1 minute
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.
Share on:
Suggested Items
Intel Takes Next Step Toward Building Scalable Silicon-Based Quantum Processors
05/02/2024 | BUSINESS WIRENature published an Intel research paper, “Probing single electrons across 300-mm spin qubit wafers,” demonstrating state-of-the-art uniformity, fidelity and measurement statistics of spin qubits.
Fujitsu, QuTech Developing Technology for Freezing Electronics to Control Diamond Spin Qubits
02/26/2024 | JCN NewswireFujitsu announced a collaboration with QuTech (1) for the development of the world's first cryogenic electronic circuits for controlling diamond-based quantum bits.
Fujitsu Develops Technology to Speed Up Quantum Circuit Computation in Quantum Simulator by 200 Times
02/19/2024 | FujitsuFujitsu announced the development of a novel technique on a quantum simulator that speeds up quantum-classical hybrid algorithms, which have been proposed as a method for the early use of quantum computers, achieving 200 times the computational speed of previous simulations.
DARPA-Funded Research Leads to Quantum Computing Breakthrough
12/08/2023 | DARPAA team of researchers working on DARPA’s Optimization with Noisy Intermediate-Scale Quantum devices (ONISQ) program has created the first-ever quantum circuit with logical quantum bits (qubits), a key discovery that could accelerate fault-tolerant quantum computing and revolutionize concepts for designing quantum computer processors.
A New Qubit Platform is Created Atom by Atom
10/09/2023 | IBSResearchers at the IBS Center for Quantum Nanoscience (QNS) at Ewha Womans University have accomplished a groundbreaking step forward in quantum information science.