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  • Institute for Quantum Computing

    Developing Tools for Quantum Characterization and Validation

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    applied math computation grand challenge quantum computer qubits

    Summary

     

    Coherence is essential for quantum computation; yet it introduces a unique sensitivity to any imperfections in hardware design, control systems, and the operating environment. Overcoming these sensitivities requires a hierarchy of strategies, ranging from optimization of the hardware architecture to software solutions including quantum error correction. Randomized Benchmarking Protocols are an important family of tools (developed mostly here in Waterloo) that have become widely adopted to characterize and optimize the performance of one- and two-qubit quantum gates. Moving beyond the current state-of-the-art, we are developing and applying protocols that can characterize, optimize, validate, and certify the overall performance of a many-qubit architecture. We are also working to develop the diagnostics that will guide the design of multi-qubit quantum processors, for example, by clarifying how the quality of quantum control scales with the number of qubits. Ultimately, we expect that this work will sharpen our understanding of the required resources for quantum computation to outperform classical systems.

     

    Principal Investigator (PI) or Team Coordinator

    Joseph Emerson

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    Related Content

    Metasurfaces for high-efficiency parametric downconversion and complex quantum state generation

    Metasurfaces for high-efficiency parametric downconversion and complex quantum state generation

    Summary  Entangled photon sources are crucial for quantum computing, quantum sensing, and quantum communication. Of growing importance are sources relying on spontaneous parametric downconversion (SPDC). Unfortunately, these sources of entangled photons are often constrained by momentum conservation laws. To overcome this limitation and expand the possibility of quantum state engineering, we intend to use metasurfaces […]

    February 1, 2023

    PI: Zbig Wasilewski

    Skip Tags entangled photons quantum processing + 1 Additional

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    • Go to Metasurfaces for high-efficiency parametric downconversion and complex quantum state generation
    Topological Properties of Exciton-Polaritons in a Kagome Lattice as a Solid-state Quantum Simulator
    TQT Computation

    Topological Properties of Exciton-Polaritons in a Kagome Lattice as a Solid-state Quantum Simulator

    Summary   In this project, we build a solid-state quantum simulator for engineering a specific Hamiltonian. Quantum simulators are purpose-built devices with little to no need for error correction, thereby making this type of hardware less demanding than universal quantum computers. Our platform consists of exciton-polariton condensates in multiple quantum-wells sandwiched in a semiconductor Bragg […]

    December 8, 2018

    PI: Na Young Kim

    Skip Tags computation grand challenge + 7 Additional

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    • Go to Topological Properties of Exciton-Polaritons in a Kagome Lattice as a Solid-state Quantum Simulator

    Quantum Sensing Applications using Quantum Communication Technology

    Summary   The Quantum Encryption and Science Satellite provides a platform to develop and deploy quantum sensing and metrology via photonic channels. This project will build upon ‘free-space’ quantum communication technology and explore new approaches and methods to advance two primary applications: quantum-enhanced telescopes, and spectroscopic sensing for methane detection in the atmosphere. For the […]

    December 8, 2018

    PI: Thomas Jennewein

    Skip Tags communication grand challenge + 7 Additional

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    Spin Generation and High-Frequency Detection via the Quantum Nonlinear Anomalous Hall Effect in Weyl Semimetals
    TQT Sensing

    Spin Generation and High-Frequency Detection via the Quantum Nonlinear Anomalous Hall Effect in Weyl Semimetals

    In magnetic conductors, the passage of current yields an electric field in the transverse direction even without an external magnetic field – this is known as the anomalous Hall effect (AHE). This effect can act as a convenient probe of spin ordering, magnetic textures, spin-orbit coupling, and band topology in solids, and can be further […]

    April 19, 2023

    PI: Adam Wei Tsen

    Skip Tags magnetic properties materials + 1 Additional

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    • Go to Spin Generation and High-Frequency Detection via the Quantum Nonlinear Anomalous Hall Effect in Weyl Semimetals

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