Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Abdurakhimov, Leonid V"'
Autor:
Toida, Hiraku, Kakuyanagi, Kosuke, Abdurakhimov, Leonid V., Hori, Masahiro, Ono, Yukinori, Saito, Shiro
A bismuth-doped silicon substrate was analyzed by using a magnetometer based on a superconducting flux qubit. The temperature dependence of the magnetization indicates that the silicon substrate contains at least two signal sources, intentionally dop
Externí odkaz:
http://arxiv.org/abs/2406.14948
Autor:
Kim, Sunmi, Abdurakhimov, Leonid V., Pham, Duong, Qiu, Wei, Terai, Hirotaka, Ashhab, Sahel, Saito, Shiro, Yamashita, Taro, Semba, Kouichi
Publikováno v:
Commun Mater 5, 216 (2024)
Conventional superconducting flux qubits require the application of a precisely tuned magnetic field to set the operation point at half a flux quantum through the qubit loop, which complicates the on-chip integration of this type of device. It has be
Externí odkaz:
http://arxiv.org/abs/2401.14597
Autor:
Abdurakhimov, Leonid V., Mahboob, Imran, Toida, Hiraku, Kakuyanagi, Kosuke, Matsuzaki, Yuichiro, Saito, Shiro
Publikováno v:
PRX Quantum 3, 040332 (2022)
Parasitic two-level-system (TLS) defects are one of the major factors limiting the coherence times of superconducting qubits. Although there has been significant progress in characterizing basic parameters of TLS defects, exact mechanisms of interact
Externí odkaz:
http://arxiv.org/abs/2112.05391
Autor:
O'Sullivan, James, Kennedy, Oscar W., Zollitsch, Christoph W., Šimėnas, Mantas, Thomas, Christopher N., Abdurakhimov, Leonid V., Withington, Stafford, Morton, John J. L.
Publikováno v:
Phys. Rev. Applied 14, 064050 (2020)
Ensembles of bismuth donor spins in silicon are promising storage elements for microwave quantum memories due to their long coherence times which exceed seconds. Operating an efficient quantum memory requires achieving critical coupling between the s
Externí odkaz:
http://arxiv.org/abs/2007.07600
Autor:
Abdurakhimov, Leonid V., Mahboob, Imran, Toida, Hiraku, Kakuyanagi, Kosuke, Matsuzaki, Yuichiro, Saito, Shiro
Publikováno v:
Phys. Rev. B 102, 100502 (2020)
It is widely known that spin-locking noise-spectroscopy is a powerful technique for the characterization of low-frequency noise mechanisms in superconducting qubits. Here we show that the relaxation rate of the driven spin-locking state of a qubit ca
Externí odkaz:
http://arxiv.org/abs/2006.05820
Publikováno v:
Appl. Phys. Lett. 115, 262601 (2019)
We report the experimental realization of a 3D capacitively-shunt superconducting flux qubit with long coherence times. At the optimal flux bias point, the qubit demonstrates energy relaxation times in the 60-90 $\mu$s range, and Hahn-echo coherence
Externí odkaz:
http://arxiv.org/abs/1911.04635
Publikováno v:
Phys. Rev. Lett. 114, 226402 (2015)
In the weak ferromagnetic MnCO$_3$ system, a low-frequency collective spin excitation (magnon) is the hybridized oscillation of nuclear and electron spins coupled through the hyperfine interaction. By using a split-ring resonator, we performed transm
Externí odkaz:
http://arxiv.org/abs/1412.7799
Autor:
Abdurakhimov, Leonid V., Kolmakov, German V., Levchenko, Aleksander A., Lvov, Yuri V., Remizov, Igor A.
The results of experimental and theoretical studies of the parametric decay instability of capillary waves on the surface of superfluid helium He-II are reported. It is demonstrated that in a system of turbulent capillary waves low-frequency waves ar
Externí odkaz:
http://arxiv.org/abs/1408.2560
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Akademický článek
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