21 citations · 31 across the 9 of their papers we have counts for
9 papers · 1 filter
Native CCZ Gate with Fluxonium Qubits and a Microwave-Driven Coupler
Grigoriy S. Mazhorin, Tatyana A. Chudakova, Alena S. Kazmina +12
Native multi-qubit gates could reduce the overhead associated with decompositions into single- and two-qubit operations, but whether they can simultaneously provide high fidelity,…
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…
Interaction-Resilient Scalable Fluxonium Architecture with All-Microwave Gates
Andrei A. Kugut, Grigoriy S. Mazhorin, Ilya A. Simakov
Fluxonium qubits demonstrate exceptional potential for quantum processing; yet, realizing scalable architectures using them remains challenging. We propose a fluxonium-based square…
Towards practical non-Markovianity measures: Normalization and regularization techniques
L. A. Mazhorina, N. D. Korolev, N. V. Morozov +15
Measures characterizing the non-Markovianity degree of the quantum dynamics have several drawbacks when applied to real devices. They depend on the chosen measurement time interval…
Impact of qubit anharmonicity on near-resonant Rabi oscillations
Grigoriy S. Mazhorin, Andrei A. Kugut, Artyom M. Polyanskiy +2
Precise quantum control relies on a deep understanding of the dynamics of quantum systems under external drives. This study investigates the impact of anharmonicity on qubit dynami…
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…
High-fidelity transmon coupler activated CCZ gate on fluxonium qubits
Ilya A. Simakov, Grigoriy S. Mazhorin, Ilya N. Moskalenko +2
The Toffoli gate takes a special place in the quantum information theory. It opens up a path for efficient implementation of complex quantum algorithms. Despite tremendous progress…
Coupler microwave-activated controlled phase gate on fluxonium qubits
Ilya A. Simakov, Grigoriy S. Mazhorin, Ilya N. Moskalenko +8
Tunable couplers have recently become one of the most powerful tools for implementing two-qubit gates between superconducting qubits. A tunable coupler typically includes a nonline…
Cavity-QED of a quantum metamaterial with tunable disorder
Grigoriy S. Mazhorin, Ilya N. Moskalenko, Ilya S. Besedin +8
We explore experimentally a quantum metamaterial based on a superconducting chip with 25 frequency-tunable transmon qubits coupled to a common coplanar resonator. The collective br…