A graph-state based synthesis framework for Clifford isometries

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Main Authors: de Brugière, Timothée Goubault, Martiel, Simon, Vuillot, Christophe
Format: Preprint
Published: 2022
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author de Brugière, Timothée Goubault
Martiel, Simon
Vuillot, Christophe
author_facet de Brugière, Timothée Goubault
Martiel, Simon
Vuillot, Christophe
contents We tackle the problem of Clifford isometry compilation, i.e, how to synthesize a Clifford isometry into an executable quantum circuit. We propose a simple framework for synthesis that only exploits the elementary properties of the Clifford group and one equation of the symplectic group. We highlight the versatility of our framework by showing that several normal forms of the literature are natural corollaries. We recover the state of the art two-qubit gate depth necessary for the execution of a Clifford circuit on an LNN architecture, concomitantly with another work. We also propose practical synthesis algorithms for Clifford isometries with a focus on Clifford operators, graph states and codiagonalization of Pauli rotations. Benchmarks show that in all three cases we improve the 2-qubit gate count and depth of random instances compared to the state-of-the-art methods. We also improve the execution of practical quantum chemistry experiments.
format Preprint
id arxiv_https___arxiv_org_abs_2212_06928
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle A graph-state based synthesis framework for Clifford isometries
de Brugière, Timothée Goubault
Martiel, Simon
Vuillot, Christophe
Quantum Physics
We tackle the problem of Clifford isometry compilation, i.e, how to synthesize a Clifford isometry into an executable quantum circuit. We propose a simple framework for synthesis that only exploits the elementary properties of the Clifford group and one equation of the symplectic group. We highlight the versatility of our framework by showing that several normal forms of the literature are natural corollaries. We recover the state of the art two-qubit gate depth necessary for the execution of a Clifford circuit on an LNN architecture, concomitantly with another work. We also propose practical synthesis algorithms for Clifford isometries with a focus on Clifford operators, graph states and codiagonalization of Pauli rotations. Benchmarks show that in all three cases we improve the 2-qubit gate count and depth of random instances compared to the state-of-the-art methods. We also improve the execution of practical quantum chemistry experiments.
title A graph-state based synthesis framework for Clifford isometries
topic Quantum Physics
url https://arxiv.org/abs/2212.06928