TQT Transformative Quantum Technologies logo
Login
  • En
  • Fr
Get Connected
TQT Transformative Quantum Technologies logo
Login
Get Connected

"Find People, Projects, etc."

Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
job
publications
equipment
media
research
projects
people
events
labs
Filter by Categories
Committee
Leadership
Science
Staff
  • Home
  • Research
  • Opportunities
  • Events
  • About
  • Get Connected
  • Institute for Quantum Computing

    Reliably operating noisy quantum computers

    Go Back Back

    More Topics

    accuracy applied mathematics computation error correction grand challenge noise parallel quantum instruction performance pqi simulation

    Summary

    The overall goal of the project is to develop practical methods to be able to reliably run useful applications on near-term quantum computers. This requires identifying and overcoming the ubiquitous errors that currently limit quantum computing capabilities. Traditional methods of quantifying errors in quantum computers fail to predict how errors affect the output of a quantum computation because the exact impact depends upon the exact form of the noise, additional errors arising from interactions between control mechanisms (e.g., crosstalk) and idle qubits, and how the gates are translated and scheduled into temporal pulses. One promising way to account for global errors is to define a parallel quantum instruction (PQI) to be a set of quantum operations executed in a fixed temporal order, including all idle gates for qubits that are not explicitly targeted by any quantum operation. In this project we develop a general method for reconstructing global noise during a cycle of parallel quantum gates and a framework for mitigating and/or extrapolating errors, leading to an experimental demonstration of their effectiveness. This will enable near-term quantum computers to be used to accurately simulate quantum systems and to determine the accuracy of the simulations.

     

    Figure 1. Schematic circuit implementation of the experimental cycle benchmarking protocol for characterizing a noisy parallel quantum instruction G (red). The green gates are used to probe how closely G maps different input states to the desired output state. Random gates (blue) are used to engineer a simple noise model to make the characterization protocol accurate and efficient.

    Principal Investigator (PI) or Team Coordinator

    Joel Wallman

    sidebar icon sidebar icon
    Group computation icon

    Share

    • Share on Twitter
    • Share on Facebook
    • Share on LinkedIn

    Related Content

    Rydberg Atom Array Quantum Simulator
    TQT Computation

    Rydberg Atom Array Quantum Simulator

    Summary  Quantum simulators enable probing the static and dynamic properties of correlated quantum many-body systems that would otherwise be numerically inaccessible using classical simulators. We are developing quantum simulators based on arrays of neutral atoms excited to Rydberg states. Such Rydberg atom arrays are advantageous for simulating the dynamics of interacting spin systems (Ising spin […]

    February 27, 2020

    PI: Alexandre Cooper-Roy

    Skip Tags atom arrays computation + 8 Additional

    • Share on Twitter
    • Share on Facebook
    • Share on LinkedIn
    • Go to Rydberg Atom Array Quantum Simulator
    Quantum State Tomography with Machine Learning
    TQT Computation

    Quantum State Tomography with Machine Learning

    Summary   An important challenge in building a quantum computer is quantifying the level of control obtained in the preparation of a quantum state. The state of a quantum device is characterized from experimental measurements, using a procedure known as tomography. Exact tomography requires a vast amount of computer resources, making it prohibitive for quantum […]

    June 6, 2018

    PI: Roger Melko

    Skip Tags computation grand challenge + 3 Additional

    • Share on Twitter
    • Share on Facebook
    • Share on LinkedIn
    • Go to Quantum State Tomography with Machine Learning
    Quantum Simulation of Strongly Coupled Field Theories
    TQT Computation

    Quantum Simulation of Strongly Coupled Field Theories

    Strongly-coupled field theories describe both fundamental and applied quantum problems.

    August 10, 2017

    PI: Chris Wilson

    Skip Tags computation electrical & computer engineering + 3 Additional

    • Share on Twitter
    • Share on Facebook
    • Share on LinkedIn
    • Go to Quantum Simulation of Strongly Coupled Field Theories

    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

    • Share on Twitter
    • Share on Facebook
    • Share on LinkedIn
    • Go to Quantum Sensing Applications using Quantum Communication Technology

    Connect with Us

    Join us at the frontier of quantum technology development. Request a visit, explore opportunities, and stay informed.

    Get Connected
    TQT Logo
    First Canada Logo
    • twitter icon
    • facebook icon
    • youtube icon
    • Home
    • Research
    • Opportunities
    • Events
    • About
    • Get Connected
    • Institute for Quantum Computing
    TQT Logo
    • Home
    • Research
    • Opportunities
    • Events
    • About
    • Get Connected
    • Institute for Quantum Computing
    • twitter icon
    • facebook icon
    • youtube icon
    First Canada Logo
    TQT Logo
    • twitter icon
    • facebook icon
    • youtube icon
    • Research
    • Overview
    • Updates
    • Projects
    • Publications
    • Labs
    • Quantum Innovation Cycle
    • Opportunities
    • Overview
    • Quantum for Health Design Challenge
    • Quantum Seed
    • Technology Development
    • Open Positions
    • Events
    • All Events
    • About
    • Overview
    • People
    • Media
    • Contact
    First Canada Logo