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Quantum++: A modern C++ quantum computing library.

Vlad Gheorghiu1,2

  • 1softwareQ Inc., Kitchener ON, Canada.

Plos One
|December 12, 2018
PubMed
Summary
This summary is machine-generated.

Quantum++ is a C++11 quantum computing library that simulates arbitrary quantum processes and classical reversible logic. It offers high performance and ease of use, simulating up to 25 qubits.

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Area of Science:

  • Quantum Computing
  • Computational Science
  • Software Engineering

Background:

  • Quantum computing harnesses quantum-mechanical phenomena for computation.
  • Efficient simulation tools are crucial for developing quantum algorithms.
  • Existing libraries may have limitations in flexibility or performance.

Purpose of the Study:

  • To introduce Quantum++, a versatile, high-performance C++11 quantum computing library.
  • To provide a general-purpose tool for simulating arbitrary quantum processes.
  • To enable simulation of both quantum and classical reversible computations.

Main Methods:

  • Developed as a header-only C++11 library for ease of integration.
  • Implemented multi-threading for enhanced computational performance.
  • Designed for broad applicability beyond specific qubit systems or tasks.

Main Results:

  • Quantum++ can simulate quantum systems limited only by physical memory.
  • Successfully simulated 25-qubit pure states and 12-qubit mixed states on standard hardware.
  • Supports classical reversible logic, simulating billions of bits for applications like Toffoli gate circuit testing.

Conclusions:

  • Quantum++ provides a powerful, flexible, and performant solution for quantum process simulation.
  • The library's design facilitates ease of use and portability.
  • Its dual capability in quantum and classical reversible computing broadens its utility in research and development.