Quantum simulation of Pauli channels and dynamical maps: Algorithm and implementation

PLoS One. 2024 Apr 10;19(4):e0297210. doi: 10.1371/journal.pone.0297210. eCollection 2024.

Abstract

Pauli channels are fundamental in the context of quantum computing as they model the simplest kind of noise in quantum devices. We propose a quantum algorithm for simulating Pauli channels and extend it to encompass Pauli dynamical maps (parametrized Pauli channels). A parametrized quantum circuit is employed to accommodate for dynamical maps. We also establish the mathematical conditions for an N-qubit transformation to be achievable using a parametrized circuit where only one single-qubit operation depends on the parameter. The implementation of the proposed circuit is demonstrated using IBM's quantum computers for the case of one qubit, and the fidelity of this implementation is reported.

MeSH terms

  • Algorithms
  • Computer Simulation
  • Computing Methodologies*
  • Humans
  • Myositis, Inclusion Body*
  • Quantum Theory

Grants and funding

TB and CP received support from projects CONACyT 285754, and UNAM-PAPIIT IG101421. Programa de Apoyo a Proyectos de Investigación e Innovación Tecnológica https://dgapa.unam.mx/index.php/impulso-a-la-investigacion/papiit Consejo Nacional de Humanidades, Ciencias y Tecnologías https://conahcyt.mx/.