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Team Develops Scalable Quantum Computing Model

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Researchers at the University of Virginia developed a scalable quantum computing platform, which drastically reduces the number of devices needed to achieve quantum speed, on a photonic chip the size of a penny. Xu Yi, assistant professor of electrical and computer engineering at the University of Virginia (UVA) School of Engineering and Applied Science, focused on generating quantum modes, which span the full spectrum of variables between one and zero. Yi turned to fields of light, which are also a full spectrum; each lightwave in the spectrum has the potential to become a quantum...Read full article

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    Published: August 2021
    Glossary
    microcomb
    A microcomb, short for microresonator frequency comb, is a novel photonic device that generates a precise series of evenly spaced optical frequencies, akin to the teeth of a comb, across a broad spectrum of wavelengths. It operates based on the phenomenon of Kerr frequency comb generation, which occurs in certain nonlinear optical resonators. Microcombs are typically fabricated from high-quality optical materials, such as silicon nitride or silicon dioxide, and have dimensions on the order of...
    chip
    1. A localized fracture at the end of a cleaved optical fiber or on a glass surface. 2. An integrated circuit.
    integrated photonics
    Integrated photonics is a field of study and technology that involves the integration of optical components, such as lasers, modulators, detectors, and waveguides, on a single chip or substrate. The goal of integrated photonics is to miniaturize and consolidate optical elements in a manner similar to the integration of electronic components on a microchip in traditional integrated circuits. Key aspects of integrated photonics include: Miniaturization: Integrated photonics aims to reduce the...
    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...
    multiplexing
    The combination of two or more signals for transmission along a single wire, path or carrier. In most optical communication systems this is referred to as wavelength division multiplexing, in which the combination of different signals for transmission are imbedded in multiple wavelengths over a single optical channel. The optical channel is a fiber optic cable or any other standard optical waveguide.
    Research & Technologyquantum computingquantum computeroptical computingOpticsmicrocombmicroresonatorchipphotonic chipintegrated photonicsUniversity of VirginiaUniversity of Virginia in CharlottesvilleXu YiOlivier PfisterqubitqumodemultiplexingMultiplexmultiplexerHansuek LeeKAISTTech Pulse

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