Effective mass of atom and the excitation spectrum in liquid helium-4 at T = 0 K
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Effective mass of atom and the excitation spectrum in liquid helium-4 at T = 0 K
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| Creator |
Rovenchak, A.A.
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| Subject |
Квантовые жидкости и квантовые кpисталлы
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| Description |
A self-consistent approach is applied for calculations within the two-time temperature Green function formalism in the random phase approximation for superfluid ⁴He. The effective mass of the ⁴He atom is computed asm m * =1.58 . The excitation spectrum is found to be in a satisfactory agreement with experiment. The sound velocity is calculated as 230 m/s. The Bose-condensation temperature with the effective mass taken into consideration is estimated as 1.99 K.
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| Date |
2018-01-13T20:07:08Z
2018-01-13T20:07:08Z 2003 |
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| Type |
Article
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| Identifier |
Effective mass of atom and the excitation spectrum in liquid helium-4 at T = 0 K / A.A. Rovenchak // Физика низких температур. — 2003. — Т. 29, № 2. — С. 145-148. — Бібліогр.: 12. назв. — англ.
0132-6414 PACS: 67.40.-w, 67.40.Db http://dspace.nbuv.gov.ua/handle/123456789/128787 |
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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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