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Native CCZ Gate with Fluxonium Qubits and a Microwave-Driven Coupler
Grigoriy S. Mazhorin, Tatyana A. Chudakova, Alena S. Kazmina +12
The paper reports an experimental demonstration of a native three-qubit controlled-controlled-phase (CCZ) gate using fluxonium qubits coupled via a microwave-driven transmon couple…
Interleaved Benchmarking with Single-Qubit References
Ilya A. Simakov, Arina V. Zotova, Tatyana A. Chudakova +10
Cross-entropy benchmarking (XEB) with single-qubit reference sequences is widely used to characterize multi-qubit gates in large-scale quantum processors, despite the lack of a rig…
Effect of Etching Methods on Dielectric Losses in Transmons
T. A. Chudakova, G. S. Mazhorin, I. V. Trofimov +9
Superconducting qubits are considered as a promising platform for implementing a fault tolerant quantum computing. However, surface defects of superconductors and the substrate lea…