Search Results - "Astafiev, Oleg V."
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Quantized current steps due to the synchronization of microwaves with Bloch oscillations in small Josephson junctions
Published in Nature communications (29-10-2024)“…Synchronization of Bloch oscillations in small Josephson junctions (JJs) under microwave radiation, which leads to current quantization, has been proposed as…”
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2
Capacitive coupling of coherent quantum phase slip qubits to a resonator
Published in New journal of physics (01-11-2023)“…We demonstrate capacitive coupling of coherent quantum phase slip (CQPS) flux qubits to a resonator patterned on a highly disordered TiN film. We are able to…”
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3
Quantum versus classical regime in circuit quantum acoustodynamics
Published in New journal of physics (01-12-2021)“…We experimentally study a circuit quantum acoustodynamics system with a superconducting artificial atom coupled to both a two-dimensional surface acoustic wave…”
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4
Quantized current steps due to the a.c. coherent quantum phase-slip effect
Published in Nature (London) (04-08-2022)“…The a.c. Josephson effect predicted in 1962 1 and observed experimentally in 1963 2 as quantized ‘voltage steps’ (the Shapiro steps) from photon-assisted…”
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5
Quantum Regime of a Two-Dimensional Phonon Cavity
Published in Physical review letters (01-06-2018)“…We realize the quantum regime of a surface acoustic wave (SAW) resonator by demonstrating vacuum Rabi mode splitting due to interaction with a superconducting…”
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6
High Quality Quasinormal Modes of Phononic Crystals for Quantum Acoustodynamics
Published in Journal of low temperature physics (01-03-2023)“…Phononic crystals are a promising platform for the study of quantum acoustodynamics. In a recent experiment, the interaction of a superconducting quantum bit…”
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7
A phononic crystal coupled to a transmission line via an artificial atom
Published in Communications physics (10-11-2020)“…The interaction of superconducting qubits with surface acoustic wave resonators in quantum regime has been achieved recently. It opens a new field of research…”
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8
Feasibility of the Josephson voltage and current standards on a single chip
Published in Applied physics letters (16-09-2024)“…The quantum Josephson voltage standard is well established across the metrology community for many years. It relies on the synchronization of the flux…”
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9
Coherent superconducting quantum pump
Published in Physical review. B, Condensed matter and materials physics (05-04-2012)“…We demonstrate nonadiabatic charge pumping utilizing a sequence of coherent oscillations between a superconducting island and two reservoirs. The pumping rate…”
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10
Quantized current steps due to the synchronization of microwaves with Bloch oscillations in small Josephson junctions
Published 09-09-2024“…Synchronization of Bloch oscillations in small Josephson junctions (JJs) under microwave radiation, which leads to current quantization, has been proposed as…”
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11
Highly stable aluminum air-bridges with stiffeners
Published 30-10-2024“…Air-bridges play a critical role in the performance of microwave circuits integrated with superconducting quantum bits, and their mechanical stability is…”
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12
Feasibility of the Josephson voltage and current standards on a single chip
Published 14-10-2024“…Appl. Phys. Lett. 125, 122602 (2024) The quantum Josephson voltage standard is well established across the metrology community for many years. It relies on the…”
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13
A phononic crystal coupled to a transmission line via an artificial atom
Published 14-09-2023“…Commun Phys 3, 207 (2020) We study a phononic crystal interacting with an artificial atom { a superconducting quantum system { in the quantum regime. The…”
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14
Hybrid quantum learning with data re-uploading on a small-scale superconducting quantum simulator
Published 10-01-2024“…Physical Review A (2024), Vol. 109, No. 1, p. 012411 Supervised quantum learning is an emergent multidisciplinary domain bridging between variational quantum…”
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15
Resonance Fluorescence from a two-level artificial atom strongly coupled to a single-mode cavity
Published 24-02-2022“…We experimentally demonstrate the resonance fluorescence of a two-level artificial atom strongly coupled to a single-mode cavity field. The effect was…”
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16
Quantum versus Classical Regime in Circuit Quantum Acoustodynamics
Published 18-01-2021“…We experimentally study a circuit quantum acoustodynamics system, which consists of a superconducting artificial atom, coupled to both a two-dimensional…”
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17
Mixing of coherent waves on a single three-level artificial atom
Published 17-09-2018“…Phys. Rev. A 98, 041801 (2018) We report coherent frequency conversion in the gigahertz range via three-wave mixing on a single artificial atom in open space…”
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