The Quantum Software group at IQC
About
As a growing array of quantum technologies are developed, we will need “quantum software”. We’ll need software for the systems controlling the quantum hardware, and we’ll need software to be run on the quantum hardware.
The main focus of our quantum software group is to develop a range of tools for the synthesis and optimization of quantum software to be run on fault-tolerant quantum computing hardware. See stage 4 in Figure 1 of this nice survey by Devoret and Schoelkopf. Some of our tools may also be applied to physical layer gates.
This page overviews the activities of our group and points to tools that we have developed over the years.
People
Michele Mosca
Professor, PI
Sebastian Verschoor
PhD student
University of Waterloo
Research
Vlad Gheorghiu
PLoS ONE 13(12): e0208073 (2018)
M. Amy, J. Chen, N. J. Ross
Quantum Physics and Logic (QPL 2017)
M. Amy, P. Azimzadeh, M. Mosca
Quantum Science and Technology 4 (1) (2018)
M. Amy
Quantum Physics and Logic (QPL 2018)
Jacob Marks, Tomas J.-O'Connor and Vlad Gheorghiu
New Journal of Physics 19, 113022 (2017).
O. Di Matteo, M. Mosca
Quantum Science and Technology 1 (1) (2016)
Software
Version 2.0 - 24 August 2019
Quantum++ is a modern C++11 general purpose quantum computing library, composed solely of template header files. Quantum++ is written in standard C++11 and has very low external dependencies, using only the Eigen 3 linear algebra header-only template library and, if available, the OpenMP multi-processing library.
Quantum++ is not restricted to qubit systems or specific quantum information processing tasks, being capable of simulating arbitrary quantum processes. The main design factors taken in consideration were the ease of use, high portability, and high performance. The library's simulation capabilities are only restricted by the amount of available physical memory. On a typical machine (Intel i5 8Gb RAM) Quantum++ can successfully simulate the evolution of 25 qubits in a pure state or of 12 qubits in a mixed state reasonably fast.
Version 1.2.0 - 27 May 2016
pQCS, short for "parallel quantum circuit synthesis", is a tool which leverages parallel collision finding algorithms to exactly synthesize multi-qubit circuits with optimal T-count. The details of the algorithm can be found in Olivia Di Matteo's MSc thesis.
pQCS is written in C++11, and comes in two 'flavours'. The first uses OpenMP for parallelization (making it suitable for use on a multi-core personal computer), and the second uses Boost.MPI (for use on clusters). pQCS has been tested extensively on Linux and Mac OS X. New features are actively under development.
Feynman is a toolkit for quantum circuit analysis in the path integral model of quantum mechanics. The toolkit comprises synthesis, optimization and verification methods based around representations of circuit actions as sums-over-paths.
Feynman includes both a library for importing into other quantum circuit and compiler projects, and standalone tools for optimization and verification.
Exact and approximate synthesis of single qubit circuits using Clifford and T gate library.
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