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Quickbits

A more efficient way to characterise the performance of quantum systems

By September 17, 2024September 30th, 2024No Comments
Virtual Z gates are special because they don't physically alter the qudit's state but instead change the phase of the operations. By assuming these gates are perfect, the new method simplifies the GST process, reducing computational costs and data collection needs.
QUICKBITS

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

Katy Alexander headshot
While qubits are two-level systems that can be in state 0 or 1, or a superposition of both; qudits are systems with more than two levels.
Qudits are a multi-level computational unit. Qudits provide a larger state space to store and process information.
Virtual Z gates are special because they don't physically alter the qudit's state but instead change the phase of the operations. By assuming these gates are perfect, the new method simplifies the GST process, reducing computational costs and data collection needs.
Virtual Z gates are special because they don’t physically alter the qudit’s state but instead change the phase of the operations. By assuming these gates are perfect, the new method simplifies the GST process, reducing computational costs and data collection needs.
Shuxiang Cao, Deep Lall, Mustafa Bakr, Giulio Campanaro, Simone D Fasciati, James Wills, Vivek Chidambaram, Boris Shteynas, Ivan Rungger, and Peter J Leek.