Observation of superfluidity in two- and one-dimensions
Even though there is no long-range-ordered state of a superfluid in dimensions lower than the three-dimension (3D) such as bulk ⁴He liquid, superfluidity has been observed for flat ⁴He films in 2D and recently for nanotubes of ⁴He in 1D by the torsional oscillator method. In the 2D state, in additio...
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| Дата: | 2013 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | English |
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2013
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| Назва видання: | Физика низких температур |
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| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/118750 |
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| Цитувати: | Observation of superfluidity in two- and one-dimensions / Nobuo Wada, Mitsunori Hieda, Ryo Toda, Taku Matsushita // Физика низких температур. — 2013. — Т. 39, № 9. — С. 1012–1020. — Бібліогр.: 38 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
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irk-123456789-1187502017-06-01T03:06:43Z Observation of superfluidity in two- and one-dimensions Wada, Nobuo Hieda, Mitsunori Toda, Ryo Matsushita, Taku Сверхтекучесть в низкоразмерных системах и в условиях ограниченной геометрии Even though there is no long-range-ordered state of a superfluid in dimensions lower than the three-dimension (3D) such as bulk ⁴He liquid, superfluidity has been observed for flat ⁴He films in 2D and recently for nanotubes of ⁴He in 1D by the torsional oscillator method. In the 2D state, in addition to the superfluid below the 2D Kosterlitz–Thouless transition temperature TKT, superfluidity is also observed in a normal fluid state above TKT, which depends strongly on the measurement frequency and the system size. In the 1D state of the nano-tubes, superfluidity is directly observed as a frequency shift in the torsional oscillator experiment. Some calcula-tions suggest a superfluidity of a 1D Bose fluid with a finite length, where thermal excitations of 2-phase winding play the main role for superfluid onset of each tube. Dynamics of the 1D superfluidity is also suggested by observing the dissipation in the torsional oscillator experiment. 2013 Article Observation of superfluidity in two- and one-dimensions / Nobuo Wada, Mitsunori Hieda, Ryo Toda, Taku Matsushita // Физика низких температур. — 2013. — Т. 39, № 9. — С. 1012–1020. — Бібліогр.: 38 назв. — англ. PACS: 67.25.bh, 67.25.dw, 68.65.–k http://dspace.nbuv.gov.ua/handle/123456789/118750 en Физика низких температур |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
Сверхтекучесть в низкоразмерных системах и в условиях ограниченной геометрии Сверхтекучесть в низкоразмерных системах и в условиях ограниченной геометрии |
| spellingShingle |
Сверхтекучесть в низкоразмерных системах и в условиях ограниченной геометрии Сверхтекучесть в низкоразмерных системах и в условиях ограниченной геометрии Wada, Nobuo Hieda, Mitsunori Toda, Ryo Matsushita, Taku Observation of superfluidity in two- and one-dimensions Физика низких температур |
| description |
Even though there is no long-range-ordered state of a superfluid in dimensions lower than the three-dimension (3D) such as bulk ⁴He liquid, superfluidity has been observed for flat ⁴He films in 2D and recently for nanotubes of ⁴He in 1D by the torsional oscillator method. In the 2D state, in addition to the superfluid below the 2D Kosterlitz–Thouless transition temperature TKT, superfluidity is also observed in a normal fluid state above TKT, which depends strongly on the measurement frequency and the system size. In the 1D state of the nano-tubes, superfluidity is directly observed as a frequency shift in the torsional oscillator experiment. Some calcula-tions suggest a superfluidity of a 1D Bose fluid with a finite length, where thermal excitations of 2-phase winding play the main role for superfluid onset of each tube. Dynamics of the 1D superfluidity is also suggested by observing the dissipation in the torsional oscillator experiment. |
| format |
Article |
| author |
Wada, Nobuo Hieda, Mitsunori Toda, Ryo Matsushita, Taku |
| author_facet |
Wada, Nobuo Hieda, Mitsunori Toda, Ryo Matsushita, Taku |
| author_sort |
Wada, Nobuo |
| title |
Observation of superfluidity in two- and one-dimensions |
| title_short |
Observation of superfluidity in two- and one-dimensions |
| title_full |
Observation of superfluidity in two- and one-dimensions |
| title_fullStr |
Observation of superfluidity in two- and one-dimensions |
| title_full_unstemmed |
Observation of superfluidity in two- and one-dimensions |
| title_sort |
observation of superfluidity in two- and one-dimensions |
| publishDate |
2013 |
| topic_facet |
Сверхтекучесть в низкоразмерных системах и в условиях ограниченной геометрии |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/118750 |
| citation_txt |
Observation of superfluidity in two- and one-dimensions / Nobuo Wada, Mitsunori Hieda, Ryo Toda, Taku Matsushita // Физика низких температур. — 2013. — Т. 39, № 9. — С. 1012–1020. — Бібліогр.: 38 назв. — англ. |
| series |
Физика низких температур |
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2023-10-18T20:32:54Z |
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2023-10-18T20:32:54Z |
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