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A graph-state based synthesis framework for Clifford isometries

Abstract

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 report an improvement of the two-qubit depth necessary for the execution of a Clifford circuit on an LNN architecture. We also apply our framework to the synthesis of graph states and the codiagonalization of Pauli rotations and we improve the 2-qubit count and 2-qubit depth of circuits taken from quantum chemistry experiments.

Dates and versions

hal-03902438 , version 1 (15-12-2022)

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Timothée Goubault de Brugière, Simon Martiel, Christophe Vuillot. A graph-state based synthesis framework for Clifford isometries. 2022. ⟨hal-03902438⟩
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