31 citations · 71 across the 12 of their papers we have counts for
12 papers
High-fidelity two-qubit gates with transmon qubits using bipolar flux pulses and tunable couplers
Nikita S. Smirnov, Aleksei R. Matanin, Anton I. Ivanov +15
High-fidelity two-qubit gates are essential for scalable quantum computing. We present a scheme based on superconducting transmon qubits and a control pulse delivery protocol that…
Investigation of tantalum films growth for coplanar resonators with internal quality factors above ten million
E. V. Zikiy, N. S. Smirnov, E. A. Krivko +13
Alpha-tantalum on silicon is a promising platform for high-coherence superconducting quantum circuits. However, the growth mechanism of alpha-tantalum on silicon remains poorly und…
Superconducting integrated on-demand quantum memory with microwave pulse preservation
Aleksei R. Matanin, Nikita S. Smirnov, Anton I. Ivanov +8
Microwave quantum memory represents a critical component for quantum radars and resource-efficient approaches to quantum error correction. Superconducting microwave resonators prov…
An engineering guide to superconducting quantum circuit shielding
Elizaveta I. Malevannaya, Viktor I. Polozov, Anton I. Ivanov +10
In this review, we provide a practical guide on protection of superconducting quantum circuits from broadband electromagnetic and infrared-radiation noise by using cryogenic shield…
Angstrom-scale ion-beam engineering of ultrathin buried oxides for quantum and neuro-inspired computing
N. Smirnov, E. Krivko, D. Moskaleva +18
Multilayer nanoscale systems incorporating buried ultrathin tunnel oxides, 2D materials, and solid electrolytes are crucial for next-generation logics, memory, quantum and neuro-in…
Lumped-element two-section impedance-matched SNAIL parametric amplifier
D. Moskaleva, N. Smirnov, D. Moskalev +11
Broadband impedance-matched Josephson parametric amplifiers are key components for high-fidelity single-shot multi-qubit readout. Nowadays, several types of impedance matched param…
Wafer-scale uniformity improvement of Dolan-bridge Josephson junction by shadow evaporation bias correction
Daria A. Moskaleva, Nikita D. Korshakov, Dmitry O. Moskalev +7
One of the practical limitations of solid-state superconducting quantum processors technology is frequency crowding due to low qubits fabrication reproducibility. Josephson junctio…
High-Q trenched aluminum coplanar resonators with an ultrasonic edge microcutting for superconducting quantum devices
E. V. Zikiy, A. I. Ivanov, N. S. Smirnov +7
Dielectric losses are one of the key factors limiting the coherence of superconducting qubits. The impact of materials and fabrication steps on dielectric losses can be evaluated u…
Broadband SNAIL parametric amplifier with microstrip impedance transformer
D. Ezenkova, D. Moskalev, N. Smirnov +8
Josephson parametric amplifiers have emerged as a promising platform for quantum information processing and squeezed quantum states generation. Travelling wave and impedance-matche…
Robust cryogenic matched low-pass coaxial filters for quantum computing applications
Andrey A. Samoylov, Anton I. Ivanov, Vladimir V. Echeistov +5
Electromagnetic noise is one of the key external factors decreasing superconducting qubits coherence. Matched coaxial filters can prevent microwave and IR photons negative influenc…
Towards highly efficient broadband superconducting quantum memory
A. R. Matanin, K. I. Gerasimov, E. S. Moiseev +8
Microwave quantum memory promises advanced capabilities for noisy intermediate-scale superconducting quantum computers. Existing approaches to microwave quantum memory lack complet…
Light-dressing of a diatomic superconducting artificial molecule
G. P. Fedorov, V. B. Yursa, A. E. Efimov +8
In this work, we irradiate a superconducting artificial molecule composed of two coupled tunable transmons with microwave light while monitoring its state via joint dispersive read…