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Laser Light Controls Qubits for Robust Quantum Info Processing

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A laser-based technique for controlling qubit vector direction could advance practical quantum technology. Researchers at the University of Chicago's Institute for Molecular Engineering and the University of Konstanz have demonstrated the ability to generate a quantum logic operation, or rotation of the qubit, that is intrinsically resilient to noise, as well as to variations in the strength or duration of the control. The work was based on a geometric concept known as the Berry phase and implemented through entirely optical means within a single electronic spin in diamond. An...Read full article

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    Published: February 2016
    Glossary
    qubit
    A qubit, short for quantum bit, is the fundamental unit of information in quantum computing and quantum information processing. Unlike classical bits, which can exist in one of two states (0 or 1), qubits can exist in multiple states simultaneously, thanks to a quantum property known as superposition. This unique feature enables quantum computers to perform certain types of calculations much more efficiently than classical computers. Key characteristics of qubits include: Superposition: A...
    Research & TechnologyAmericasChicagoKonstanzDavid AwschalomCommunicationsqubitberry phasequantum computingTech Pulse

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