PauliComposer: Compute Tensor Products of Pauli Matrices Efficiently
Quantum Physics
2023-12-20 v2 Computational Physics
Abstract
We introduce a simple algorithm that efficiently computes tensor products of Pauli matrices. This is done by tailoring the calculations to this specific case, which allows to avoid unnecessary calculations. The strength of this strategy is benchmarked against state-of-the-art techniques, showing a remarkable acceleration. As a side product, we provide an optimized method for one key calculus in quantum simulations: the Pauli basis decomposition of Hamiltonians.
Cite
@article{arxiv.2301.00560,
title = {PauliComposer: Compute Tensor Products of Pauli Matrices Efficiently},
author = {Sebastián V. Romero and Juan Santos-Suárez},
journal= {arXiv preprint arXiv:2301.00560},
year = {2023}
}
Comments
6 pages, 4 figures