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

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

URL: http://arxiv.org/abs/2210.04857v4
Date: Thu, 11 Jul 2024 09:40:53 GMT
Title: Efficient characterization of qudit logical gates with gate set tomography using an error-free Virtual-Z-gate model
Authors: Shuxiang Cao, Deep Lall, Mustafa Bakr, Giulio Campanaro, Simone Fasciati, James Wills, Vivek Chidambaram, Boris Shteynas, Ivan Rungger, Peter Leek,
Abstract summary: We propose a more efficient GST approach for qudits, utilizing the qudit Hadamard and virtual Z gates to construct fiducials. Our method reduces the computational costs of estimating characterization results, making GST more practical at scale.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: 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.

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