Drag of superfluid current in bilayer Bose systems
An effect of nondissipative drag of a superfluid flow in a system of two Bose gases confined in two parallel quasi-two-dimensional traps is studied. Using an approach based on introduction of density and phase operators, we compute the drag current at zero and finite temperatures for arbitrary ra...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2004 |
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2004
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/120050 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Drag of superfluid current in bilayer Bose systems / D.V. Fil, S.I. Shevchenko // Физика низких температур. — 2004. — Т. 30, № 10. — С. 1028–1037. — Бібліогр.: 29 назв. — англ. |
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Fil, D.V. Shevchenko, S.I. 2017-06-10T19:42:27Z 2017-06-10T19:42:27Z 2004 Drag of superfluid current in bilayer Bose systems / D.V. Fil, S.I. Shevchenko // Физика низких температур. — 2004. — Т. 30, № 10. — С. 1028–1037. — Бібліогр.: 29 назв. — англ. 0132-6414 PACS: 03.75.Kk, 03.75.Mn, 03.75.Gg https://nasplib.isofts.kiev.ua/handle/123456789/120050 An effect of nondissipative drag of a superfluid flow in a system of two Bose gases confined in two parallel quasi-two-dimensional traps is studied. Using an approach based on introduction of density and phase operators, we compute the drag current at zero and finite temperatures for arbitrary ratio of particle densities in the adjacent layers. We demonstrate that in a system of two ring-shaped traps the «drag force» influences the drag trap in the same way as an external magnetic flux influences a superconducting ring. This allows one to use the drag effect to control persistent current states in superfluids and opens up the possibility of implementing a Bose analog of the superconducting Josephson flux qubit. This work is supported by INTAS Grant No. 01-2344. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Квантовые жидкости и квантовые кpисталлы Drag of superfluid current in bilayer Bose systems Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Drag of superfluid current in bilayer Bose systems |
| spellingShingle |
Drag of superfluid current in bilayer Bose systems Fil, D.V. Shevchenko, S.I. Квантовые жидкости и квантовые кpисталлы |
| title_short |
Drag of superfluid current in bilayer Bose systems |
| title_full |
Drag of superfluid current in bilayer Bose systems |
| title_fullStr |
Drag of superfluid current in bilayer Bose systems |
| title_full_unstemmed |
Drag of superfluid current in bilayer Bose systems |
| title_sort |
drag of superfluid current in bilayer bose systems |
| author |
Fil, D.V. Shevchenko, S.I. |
| author_facet |
Fil, D.V. Shevchenko, S.I. |
| topic |
Квантовые жидкости и квантовые кpисталлы |
| topic_facet |
Квантовые жидкости и квантовые кpисталлы |
| publishDate |
2004 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
An effect of nondissipative drag of a superfluid flow in a system of two Bose gases confined in
two parallel quasi-two-dimensional traps is studied. Using an approach based on introduction of
density and phase operators, we compute the drag current at zero and finite temperatures for arbitrary
ratio of particle densities in the adjacent layers. We demonstrate that in a system of two
ring-shaped traps the «drag force» influences the drag trap in the same way as an external magnetic
flux influences a superconducting ring. This allows one to use the drag effect to control persistent
current states in superfluids and opens up the possibility of implementing a Bose analog of
the superconducting Josephson flux qubit.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/120050 |
| citation_txt |
Drag of superfluid current in bilayer Bose systems / D.V. Fil, S.I. Shevchenko // Физика низких температур. — 2004. — Т. 30, № 10. — С. 1028–1037. — Бібліогр.: 29 назв. — англ. |
| work_keys_str_mv |
AT fildv dragofsuperfluidcurrentinbilayerbosesystems AT shevchenkosi dragofsuperfluidcurrentinbilayerbosesystems |
| first_indexed |
2025-11-29T10:36:12Z |
| last_indexed |
2025-11-29T10:36:12Z |
| _version_ |
1850854792561164288 |