Diagnostics of macroscopic quantum states of Bose–Einstein condensate in double-well potential by nonstationary Josephson effect
We propose a method of diagnostics of a degenerate ground state of Bose condensate in a double-
 well potential. The method is based on the study of the one-particle coherent tunneling under
 switching of the time-dependent weak Josephson coupling between the wells. We obtain a simpl...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2005 |
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| Format: | Artikel |
| Sprache: | Englisch |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2005
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/120776 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Diagnostics of macroscopic quantum states of Bose–Einstein condensate in double-well potential by nonstationary Josephson effect / E.D. Vol // Физика низких температур. — 2005. — Т. 31, № 2. — С. 131-133. — Бібліогр.: 7 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862550639801794560 |
|---|---|
| author | Vol, E.D. |
| author_facet | Vol, E.D. |
| citation_txt | Diagnostics of macroscopic quantum states of Bose–Einstein condensate in double-well potential by nonstationary Josephson effect / E.D. Vol // Физика низких температур. — 2005. — Т. 31, № 2. — С. 131-133. — Бібліогр.: 7 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | We propose a method of diagnostics of a degenerate ground state of Bose condensate in a double-
well potential. The method is based on the study of the one-particle coherent tunneling under
switching of the time-dependent weak Josephson coupling between the wells. We obtain a simple
expression that allows one to determine the phase of the condensate and the total number of the
particles in the condensate from the relative number of particles in the two wells Δn = n₁ -
n₂ measured
before the Josephson coupling is switched on and after it is switched off. The specifics of the
application of the method in the cases of the external and the internal Josephson effect are discussed.
|
| first_indexed | 2025-11-25T20:49:21Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-120776 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-11-25T20:49:21Z |
| publishDate | 2005 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Vol, E.D. 2017-06-12T19:35:05Z 2017-06-12T19:35:05Z 2005 Diagnostics of macroscopic quantum states of Bose–Einstein condensate in double-well potential by nonstationary Josephson effect / E.D. Vol // Физика низких температур. — 2005. — Т. 31, № 2. — С. 131-133. — Бібліогр.: 7 назв. — англ. 0132-6414 PACS: 03.75.Fi, 05.30.Jp https://nasplib.isofts.kiev.ua/handle/123456789/120776 We propose a method of diagnostics of a degenerate ground state of Bose condensate in a double-
 well potential. The method is based on the study of the one-particle coherent tunneling under
 switching of the time-dependent weak Josephson coupling between the wells. We obtain a simple
 expression that allows one to determine the phase of the condensate and the total number of the
 particles in the condensate from the relative number of particles in the two wells Δn = n₁ -
 n₂ measured
 before the Josephson coupling is switched on and after it is switched off. The specifics of the
 application of the method in the cases of the external and the internal Josephson effect are discussed. I would like to acknowledge R.I. Shekhter, S.I.
 Shevchenko, and D.V. Fil for discussion of the results
 presented in this article. 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 Diagnostics of macroscopic quantum states of Bose–Einstein condensate in double-well potential by nonstationary Josephson effect Article published earlier |
| spellingShingle | Diagnostics of macroscopic quantum states of Bose–Einstein condensate in double-well potential by nonstationary Josephson effect Vol, E.D. Квантовые жидкости и квантовые кpисталлы |
| title | Diagnostics of macroscopic quantum states of Bose–Einstein condensate in double-well potential by nonstationary Josephson effect |
| title_full | Diagnostics of macroscopic quantum states of Bose–Einstein condensate in double-well potential by nonstationary Josephson effect |
| title_fullStr | Diagnostics of macroscopic quantum states of Bose–Einstein condensate in double-well potential by nonstationary Josephson effect |
| title_full_unstemmed | Diagnostics of macroscopic quantum states of Bose–Einstein condensate in double-well potential by nonstationary Josephson effect |
| title_short | Diagnostics of macroscopic quantum states of Bose–Einstein condensate in double-well potential by nonstationary Josephson effect |
| title_sort | diagnostics of macroscopic quantum states of bose–einstein condensate in double-well potential by nonstationary josephson effect |
| topic | Квантовые жидкости и квантовые кpисталлы |
| topic_facet | Квантовые жидкости и квантовые кpисталлы |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/120776 |
| work_keys_str_mv | AT voled diagnosticsofmacroscopicquantumstatesofboseeinsteincondensateindoublewellpotentialbynonstationaryjosephsoneffect |