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    qubit tagged posts

    ‘Toggle Switch’ Can Help Quantum Computers Cut Through the Noise

    June 27, 2023, Categories  Physics, Technology/Electronics

    A blue-tinged drawing shows a schematic of the two qubits and resonator above a white rectangle, which represents the SQUID device that controls the connections and relationships among the qubits and resonator elements.
    This photo shows the central working region of the device. In the lower section, the three large rectangles (light blue) represent the two quantum bits, or qubits, at right and left and the resonator in the center. In the upper, magnified section, driving microwaves through the antenna (large dark-blue rectangle at bottom) induces a magnetic field in the SQUID loop (smaller white square at center, whose sides are about 20 micrometers long). The magnetic field activates the toggle switch. The microwaves’ frequency and magnitude determine the switch’s position and strength of connection among the qubits and resonator.
    Credit: R. Simmonds/NIST

    The novel device could lead to more versatile quantum processors with clearer outputs...

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    Building a Better Quantum Bit: New qubit breakthrough could transform quantum computing

    May 6, 2022, Categories  Physics, Technology/Electronics

    An illustration of the qubit platform made of a single electron on solid neon. Researchers froze neon gas into a solid at very low temperatures, sprayed electrons from a light bulb onto the solid and trapped a single electron there to create a qubit. (Courtesy of Dafei Jin/Argonne National Laboratory)

    A team led by researchers at the U.S. Department of Energy’s (DOE) Argonne National Laboratory, in close collaboration with FAMU-FSU College of Engineering Associate Professor of Mechanical Engineering Wei Guo, has announced the creation of a new qubit platform that shows great promise to be developed into future quantum computers. Their work is published in Nature.

    “Quantum computers could be a revolutionary tool for performing calculations that are practically impossible for classica...

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    A Molecule that Responds to Light

    April 14, 2021, Categories  Physics, Technology/Electronics

    Based on the Europium(III) scientists aim to advance the development of Quantum Computers. (S. Kuppusamy, KIT)
    Based on the Europium(III) scientists aim to advance the development of Quantum Computers. (S. Kuppusamy, KIT)

    Light can be used to operate quantum information processing systems, e.g. quantum computers, quickly and efficiently. Researchers at Karlsruhe Institute of Technology (KIT) and Chimie ParisTech/CNRS have now significantly advanced the development of molecule-based materials suitable for use as light-addressable fundamental quantum units. As they report in the journal Nature Communications, they have demonstrated for the first time the possibility of addressing nuclear spin levels of a molecular complex of europium(III) rare-earth ions with light.

    Whether in drug development, communication, or for climate forecasts: Processing information quickly and efficiently is crucial i...

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    Physicists develop world’s best Quantum Bits

    May 30, 2020, Categories  Physics, Technology/Electronics

    A photo of Assistant Professor Wesley Campbell, UCLA Physics & Astronomy
    Assistant Professor Wesley Campbell, UCLA Physics & Astronomy (Photo Credit: UCLA)

    A team of researchers at UCLA has set a new record for preparing and measuring the quantum bits, or qubits, inside of a quantum computer without error. The techniques they have developed make it easier to build quantum computers that outperform classical computers for important tasks, including the design of new materials and pharmaceuticals. The research is published in the peer-reviewed, online open-access journal, npj Quantum Information, published by Nature and including the exceptional research on quantum information and quantum computing.

    Currently, the most powerful quantum computers are “noisy intermediate-scale quantum” (NISQ) devices and are very sensitive to errors...

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