Efficient characterization of qudit logical gates with gate set tomography using an error-free Virtual-Z-gate model

Fuente: arXiv
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Auteurs principaux: Cao, Shuxiang, Lall, Deep, Bakr, Mustafa, Campanaro, Giulio, Fasciati, Simone, Wills, James, Chidambaram, Vivek, Shteynas, Boris, Rungger, Ivan, Leek, Peter
Format: Preprint
Publié: 2022
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author Cao, Shuxiang
Lall, Deep
Bakr, Mustafa
Campanaro, Giulio
Fasciati, Simone
Wills, James
Chidambaram, Vivek
Shteynas, Boris
Rungger, Ivan
Leek, Peter
author_facet Cao, Shuxiang
Lall, Deep
Bakr, Mustafa
Campanaro, Giulio
Fasciati, Simone
Wills, James
Chidambaram, Vivek
Shteynas, Boris
Rungger, Ivan
Leek, Peter
contents Gate-set tomography (GST) characterizes the process matrix of quantum logic gates, along with measurement and state preparation errors in quantum processors. GST typically requires extensive data collection and significant computational resources for model estimation. We propose a more efficient GST approach for qudits, utilizing the qudit Hadamard and virtual Z gates to construct fiducials while assuming virtual Z gates are error-free. Our method reduces the computational costs of estimating characterization results, making GST more practical at scale. We experimentally demonstrate the applicability of this approach on a superconducting transmon qutrit.
format Preprint
id arxiv_https___arxiv_org_abs_2210_04857
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Efficient characterization of qudit logical gates with gate set tomography using an error-free Virtual-Z-gate model
Cao, Shuxiang
Lall, Deep
Bakr, Mustafa
Campanaro, Giulio
Fasciati, Simone
Wills, James
Chidambaram, Vivek
Shteynas, Boris
Rungger, Ivan
Leek, Peter
Quantum Physics
Gate-set tomography (GST) characterizes the process matrix of quantum logic gates, along with measurement and state preparation errors in quantum processors. GST typically requires extensive data collection and significant computational resources for model estimation. We propose a more efficient GST approach for qudits, utilizing the qudit Hadamard and virtual Z gates to construct fiducials while assuming virtual Z gates are error-free. Our method reduces the computational costs of estimating characterization results, making GST more practical at scale. We experimentally demonstrate the applicability of this approach on a superconducting transmon qutrit.
title Efficient characterization of qudit logical gates with gate set tomography using an error-free Virtual-Z-gate model
topic Quantum Physics
url https://arxiv.org/abs/2210.04857