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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2019, Volume 110, Issue 8, Pages 569–574
DOI: https://doi.org/10.1134/S0370274X19200104 (Mi jetpl6030) 		 
This article is cited in 6 scientific papers (total in 6 papers)

QUANTUM INFORMATION SCIENCE

Planar architecture for studying a fluxonium qubit

I. N. Moskalenkoa, I. S. Besedina, I. A. Tsitsilinab, G. S. Mazhorinb, N. N. Abramova, A. Grigor'eva, I. A. Rodionovcd, A. A. Dobronosovacd, D. O. Moskalevc, A. A. Pishchimovacd, A. V. Ustinovaef

a National University of Science and Technology MISIS, Moscow, 119049 Russia
b Moscow Institute of Physics and Technology (National Research University), Dolgoprudnyi, Moscow region, 141701 Russia
c Bauman Moscow State Technical University, Moscow, 105005 Russia
d All-Russia Research Institute of Automatics, Moscow, 127055 Russia
e Physikalisches Institut, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
f Russian Quantum Center, Skolkovo, Moscow region, 143025 Russia
Full-text PDF (1528 kB) Citations (6)
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DOI: https://doi.org/10.1134/S0370274X19200104
Abstract: The spectral and temporal characteristics of a fluxonium qubit coupled to a coplanar resonator on a chip have been experimentally studied. The system has been implemented as a planar integral electric circuit, where the fluxonium qubit itself consists of a tunnel Josephson junction with a small area shunted by a high inductance of a series of Josephson junctions with larger areas. To analyze the experimental data, an extended model of the fluxonium qubit capacitively coupled to the resonator has been proposed, and the structure of the energy levels has been obtained by full diagonalization of the Hamiltonian of the system. Numerical predictions of the model allow interpreting the results of two-tone spectroscopy obtained at various external magnetic fluxes in a wide frequency range.
Funding agency Grant number
Russian Science Foundation 19-42-04137
Ministry of Education and Science of the Russian Federation К2А-2018-048
The development of a theoretical model to describe the fluxonium qubit coupled to the coplanar resonator, as well as the development of layer-by-layer geometry and fabrication of experimental fluxonium samples, was supported by the Russian Science Foundation (project no. 19-42-04137). Experimental studies of the spectral and temporal characteristics of fluxonium qubits were supported by the Ministry of Science and Higher Education of the Russian Federation (project no. K2A-2018-048).
Received: 18.09.2019
Revised: 18.09.2019
Accepted: 24.09.2019
English version:
Journal of Experimental and Theoretical Physics Letters, 2019, Volume 110, Issue 8, Pages 574–579
DOI: https://doi.org/10.1134/S0021364019200074
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: I. N. Moskalenko, I. S. Besedin, I. A. Tsitsilin, G. S. Mazhorin, N. N. Abramov, A. Grigor'ev, I. A. Rodionov, A. A. Dobronosova, D. O. Moskalev, A. A. Pishchimova, A. V. Ustinov, “Planar architecture for studying a fluxonium qubit”, Pis'ma v Zh. Èksper. Teoret. Fiz., 110:8 (2019), 569–574; JETP Letters, 110:8 (2019), 574–579
Citation in format AMSBIB
\Bibitem{MosBesTsi19}
\by I.~N.~Moskalenko, I.~S.~Besedin, I.~A.~Tsitsilin, G.~S.~Mazhorin, N.~N.~Abramov, A.~Grigor'ev, I.~A.~Rodionov, A.~A.~Dobronosova, D.~O.~Moskalev, A.~A.~Pishchimova, A.~V.~Ustinov
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    • This publication is cited in the following 6 articles:
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    		Письма в Журнал экспериментальной и теоретической физики Pis'ma v Zhurnal Иksperimental'noi i Teoreticheskoi Fiziki
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