Fast Logic with Slow Qubits: Microwave-Activated Controlled-Z Gate on Low-Frequency Fluxoniums

We demonstrate a controlled-Z gate between capacitively coupled fluxonium qubits with transition frequencies 72.3 and 136.3 MHz. The gate is activated by a 61.6-ns-long pulse at a frequency between noncomputational transitions |10⟩-|20⟩ and |11⟩-|21⟩, during which the qubits complete only four and e...

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Bibliographic Details
Main Authors: Quentin Ficheux, Long B. Nguyen, Aaron Somoroff, Haonan Xiong, Konstantin N. Nesterov, Maxim G. Vavilov, Vladimir E. Manucharyan
Format: Article
Language:English
Published: American Physical Society 2021-05-01
Series:Physical Review X
Online Access:http://doi.org/10.1103/PhysRevX.11.021026