Quantum Information in Spain ICE-8

PauliComposer: Compute Tensor Products of Pauli Matrices Efficiently

Not scheduled

20m

Looby Library of Mathematics

Poster Poster Session 1

Speaker

Sebastián V. Romero (Tecnalia Research & Innovation)

Description

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.