Fault-tolerance is essential to the performance of quantum technologies, but known schemes are extremely resource intensive. Thus, improving existing schemes or inventing new schemes is of central importance. This joint project is based on the realization that fault-tolerance schemes make use of symmetries in fundamental ways, and that studying the problem of fault tolerance broadly from a symmetry perspective may offer valuable insights. We will do so by focusing on fault-tolerance and control-error mitigation primitives that make explicit use of symmetries, and unveil fundamental connections between the two. This involves the study of decoherence and error control, and measures that counteract them in two settings: fault-tolerant universal quantum computation (FTQC) using magic state distillation; and computational phases of matter. We will address which types of symmetries lead to computationally universal phases of matter, and the minimum operational cost of fault-tolerant universal quantum computation. This work is a collaboration between the research groups of David Poulin, Robert Raussendorf, and Beni Yoshida from the Université de Sherbrooke, University of British Columbia and the Perimeter Institute, respectively. Results from this project will shed light on which order parameters of condensed matter systems are important for quantum information processing and quantum sensing, and how to assess and reduce the overhead requirements for fault-tolerant quantum computation via understanding the process of magic-state distillation.
Next Generation Quantum Sensors
We are developing new semiconductor p-n junctions and designing novel nanowire arrays that have the potential to significantly enhance the ability to detect light at the single photon level over an unprecedented wavelength range from the ultraviolet to infrared.
June 1, 2017
Hybrid Quantum Materials towards Topological Quantum Computing
Summary Proximity engineered hybrid materials have shown promise for topological quantum information processing. This form of quantum computing provides a stable, error-tolerant approach for building scalable quantum information processors. Topological quantum computing relies on braiding non-Abelian particles, such as Majorana fermions, which do not exist in nature. One can however use materials engineering to […]
December 8, 2018
Repurposing potential drug candidates for the treatment of COVID-19
Summary The main protease (Mpro) in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus responsible for the coronavirus disease (COVID-19), has emerged as a promising drug target. The scientific community has produced a large number of crystallographic structures of the protease, which mediates viral replication and transcription. These structures report several fragments with varied chemotypes […]
May 6, 2020
Advanced microwave electronics enabling quantum technologies
Summary Superconducting quantum computers require quantum-limited measurements at microwave frequencies in order to implement error correction. Conventionally, this is accomplished using near quantum-limited Josephson Parametric Amplifiers (JPAs). The JPAs require bulky ferrite-based circulators that prevent on-chip integration of the amplifiers with the processor and take up the majority of space and cooling power in the […]
April 1, 2020