Bose–Einstein condensation in a decorated lattice: an application to the problem of supersolid He
The Bose–Einstein condensation of vacancies in a three-dimensional decorated lattice is considered. The
 model describes possible scenario of superfluidity of solid helium, caused by the presence of zero-point vacancies
 in a dislocation network. It is shown that the temperature of B...
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| Опубліковано в: : | Физика низких температур |
|---|---|
| Дата: | 2008 |
| Автори: | , |
| Формат: | Стаття |
| Мова: | Англійська |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2008
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| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/116910 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Bose–Einstein condensation in a decorated lattice:
 an application to the problem of supersolid He / D.V. Fil, S.I. Shevchenko // Физика низких температур. — 2008. — Т. 34, № 4-5. — С. 440–446. — Бібліогр.: 13 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862544170893180928 |
|---|---|
| author | Fil, D.V. Shevchenko, S.I. |
| author_facet | Fil, D.V. Shevchenko, S.I. |
| citation_txt | Bose–Einstein condensation in a decorated lattice:
 an application to the problem of supersolid He / D.V. Fil, S.I. Shevchenko // Физика низких температур. — 2008. — Т. 34, № 4-5. — С. 440–446. — Бібліогр.: 13 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | The Bose–Einstein condensation of vacancies in a three-dimensional decorated lattice is considered. The
model describes possible scenario of superfluidity of solid helium, caused by the presence of zero-point vacancies
in a dislocation network. It is shown that the temperature of Bose–Einstein condensation decreases
under increase of the length of the network segments, and the law of decrease depends essentially on the
properties of the vertexes of the network. If the vertexes correspond to barriers with a small transparency,
the critical temperature is inversely as the square of the length of the segment. On the contrary, if the vertexes
correspond to traps for the vacancies (it is energetically preferable for the vacancies to be localized at
the vertexes), an exponential lowering of the temperature of transition takes place. The highest temperature
of Bose–Einstein condensation is reached in the intermediate case of vertexes with large transparency, but in
the absence of tendency of localization at them. In the latter case the critical temperature is inversely as the
length of the segment.
|
| first_indexed | 2025-11-24T23:39:11Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-116910 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-11-24T23:39:11Z |
| publishDate | 2008 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Fil, D.V. Shevchenko, S.I. 2017-05-18T09:55:55Z 2017-05-18T09:55:55Z 2008 Bose–Einstein condensation in a decorated lattice:
 an application to the problem of supersolid He / D.V. Fil, S.I. Shevchenko // Физика низких температур. — 2008. — Т. 34, № 4-5. — С. 440–446. — Бібліогр.: 13 назв. — англ. 0132-6414 PACS: 67.80.–s;67.10.Ba https://nasplib.isofts.kiev.ua/handle/123456789/116910 The Bose–Einstein condensation of vacancies in a three-dimensional decorated lattice is considered. The
 model describes possible scenario of superfluidity of solid helium, caused by the presence of zero-point vacancies
 in a dislocation network. It is shown that the temperature of Bose–Einstein condensation decreases
 under increase of the length of the network segments, and the law of decrease depends essentially on the
 properties of the vertexes of the network. If the vertexes correspond to barriers with a small transparency,
 the critical temperature is inversely as the square of the length of the segment. On the contrary, if the vertexes
 correspond to traps for the vacancies (it is energetically preferable for the vacancies to be localized at
 the vertexes), an exponential lowering of the temperature of transition takes place. The highest temperature
 of Bose–Einstein condensation is reached in the intermediate case of vertexes with large transparency, but in
 the absence of tendency of localization at them. In the latter case the critical temperature is inversely as the
 length of the segment. The authors would like to thank L.A. Pastur for helpful
 discussions. This study was supported in part by the
 CRDF grant No 2853. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Твердый гелий Bose–Einstein condensation in a decorated lattice: an application to the problem of supersolid He Article published earlier |
| spellingShingle | Bose–Einstein condensation in a decorated lattice: an application to the problem of supersolid He Fil, D.V. Shevchenko, S.I. Твердый гелий |
| title | Bose–Einstein condensation in a decorated lattice: an application to the problem of supersolid He |
| title_full | Bose–Einstein condensation in a decorated lattice: an application to the problem of supersolid He |
| title_fullStr | Bose–Einstein condensation in a decorated lattice: an application to the problem of supersolid He |
| title_full_unstemmed | Bose–Einstein condensation in a decorated lattice: an application to the problem of supersolid He |
| title_short | Bose–Einstein condensation in a decorated lattice: an application to the problem of supersolid He |
| title_sort | bose–einstein condensation in a decorated lattice: an application to the problem of supersolid he |
| topic | Твердый гелий |
| topic_facet | Твердый гелий |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/116910 |
| work_keys_str_mv | AT fildv boseeinsteincondensationinadecoratedlatticeanapplicationtotheproblemofsupersolidhe AT shevchenkosi boseeinsteincondensationinadecoratedlatticeanapplicationtotheproblemofsupersolidhe |