Magnetic flux noise in the three Josephson junctions superconducting ring
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Magnetic flux noise in the three Josephson junctions superconducting ring
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| Creator |
Il’ichev, E.
Omelyanchouk, A.N. |
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| Subject |
Свеpхпpоводимость, в том числе высокотемпеpатуpная
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| Description |
We analyze the influence of noise on magnetic properties of a superconducting loop which contains three Josephson junctions. This circuit is a classical analog of a persistent current (flux) qubit. A loop supercurrent induced by external magnetic field at the presence of thermal fluctuations is calculated. In order to get connection with experiment we calculate the impedance of the low-frequency tank circuit which is inductively coupled with a loop of interest. We compare obtained results with the results in quantum mode — when the three junction loop exhibits quantum tunneling of the magnetic flux. We demonstrate that the tank-loop impedance in the classical and quantum modes have different temperature dependence and can be easily distinguished experimentally. |
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| Date |
2017-05-18T16:53:41Z
2017-05-18T16:53:41Z 2008 |
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| Type |
Article
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| Identifier |
Magnetic flux noise in the three Josephson junctions
superconducting ring
/ E. Il’ichev, A.N. Omelyanchouk // Физика низких температур. — 2008. — Т. 34, № 6. — С. 520–524. — Бібліогр.: 11 назв. — англ.
0132-6414 PACS: 85.25.Am;85.25.Hv http://dspace.nbuv.gov.ua/handle/123456789/116976 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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