Rigetti Computing, Inc. , a pioneer in full-stack quantum-classical computing, announced today the public launch of its 84-qubit Ankaa-3 system. Ankaa-3 is Rigetti’s newest flagship quantum computer featuring an extensive hardware redesign that enables superior performance. Rigetti also celebrates major two-qubit gate fidelity milestones with Ankaa-3: successfully halving error rates in 2024 to achieve a median 99.0% iSWAP gate fidelity, as well as demonstrating 99.5% median fidelity fSim gates.

The proposed 24-qubit quantum computing system will be based on Rigetti’s fourth generation Ankaa™-class architecture and will be made available to NQCC researchers for testing, benchmarking, and exploratory applications development.

The University of Oxford research group led by OQC CSO Dr. Peter Leek today announced research demonstrating a fundamental speedup of the controlled-Z gate in superconducting qubits reaching a fidelity of 99.8% in only 25 ns.

QuantWare and QuantrolOx have announced a joint offering enabling quantum computer researchers to develop error correction capabilities using QuantWare’s flagship error-correction Contralto-A quantum processor with the automated tuneup of QuantrolOx’s Quantum EDGE software.

QuantWare, a global leader in quantum hardware scaling technologies, today revealed Contralto-A: a new Quantum Processor Unit (QPU) with complementary offering designed to meet the requirements of its customers wanting to scale their quantum error-correction capabilities.

Quantum Machines, the leading provider of processor-based quantum controllers and Rigetti Computing, a pioneer in full-stack quantum-classical computing, today announced the successful application of AI to automate the calibration of a quantum computer. The work was completed as part of the “AI for Quantum Calibration Challenge” (the “Challenge") that was jointly issued by Rigetti and Quantum Machines and hosted at the Israeli Quantum Computing Center (IQCC).

Researchers from the RIKEN Center for Quantum Computing and Toshiba have succeeded in building a quantum computer gate based on a double-transmon coupler (DTC), which had been proposed theoretically by Hayato Goto, Senior Fellow at Toshiba, as a device that could significantly enhance the fidelity of quantum gates. Using this, they achieved a fidelity of 99.90 percent for a two-qubit device known as a CZ gate and 99.98 percent for a single-qubit gate. This breakthrough, which was carried out as part of the Q-LEAP project, not only boosts the performance of existing noisy intermediate-scale quantum (NISQ) devices but also helps pave the way for the realization of fault-tolerant quantum computation through effective quantum error correction.

Dutch quantum technology company Orange Quantum Systems [OrangeQS] has today launched the OrangeQS Max, which is designed to accelerate the development of quantum computers by making it possible to test new, more powerful quantum chips with a fraction of the R&D resources that are normally required for such testing.

Toshiba Corporation (Toshiba) has confirmed a breakthrough technology that promises to advance progress toward the development of higher-performance quantum computers through an investigation of a potential major advance in quantum computing. Experiments conducted by a joint research group from Toshiba and RIKEN, one of Japan’s largest comprehensive research institutions, have successfully realized a Double-Transmon Coupler, a solution for superconducting quantum computers initially proposed by Toshiba. The researchers achieved a world-class fidelity of 99.90% for a two-qubit gate, which is at the heart of quantum computation. Fidelity is a standard performance indicator for quantum gates, quantifying how close an operation is to the ideal in a range from 0% to 100%, with higher percentages indicating greater accuracy in the quantum gate's operation.

Rigetti UK Limited, a wholly owned subsidiary of Rigetti Computing, Inc. (“Rigetti” or the “Company”), a pioneer in full-stack quantum-classical computing, today announced that the UK’s National Quantum Computing Centre (NQCC) officially opened the doors of its landmark facility on Harwell Campus on October 25. The facility will support world-class quantum computing research and provide state-of-the-art laboratories for designing, building, and testing quantum computers. Rigetti’s system located at the NQCC is a fully operational 24-qubit Ankaa-class quantum computer, featuring tunable couplers and a square lattice for fast gate times, enhanced connectivity, and high fidelity. As part of the implementation, Rigetti will be integrating Riverlane’s technology with the long-term objective of large-scale error correction.