Analogues of Josephson junctions and black hole event horizons in atomic Bose–Einstein condensates
We study dynamical processes in coherently coupled atomic Bose–Einstein condensates. Josephson effects in ring-shaped and dumbbell geometries are theoretically investigated. Conditions for observation of the Josephson effect are revealed. We found that multicharged persistent current in toroidal c...
Збережено в:
Дата: | 2018 |
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Автори: | , , , , , |
Формат: | Стаття |
Мова: | English |
Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2018
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Назва видання: | Физика низких температур |
Теми: | |
Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/176265 |
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Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
Цитувати: | Analogues of Josephson junctions and black hole event horizons in atomic Bose–Einstein condensates / A.I. Yakimenko, O.I. Matsyshyn, A.O. Oliinyk, V.M. Biloshytskyi, O.G. Chelpanova, S.I. Vilchynskii // Физика низких температур. — 2018. — Т. 44, № 10. — С. 1316-1325. — Бібліогр.: 45 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of UkraineРезюме: | We study dynamical processes in coherently coupled atomic Bose–Einstein condensates. Josephson effects in
ring-shaped and dumbbell geometries are theoretically investigated. Conditions for observation of the Josephson
effect are revealed. We found that multicharged persistent current in toroidal condensate can be robust even for
supersonic atomic flow. In numerical simulations the acoustic analogues of event horizon in quantized superflow
were observed. These theoretical finding open perspectives for investigation of Bose Josephson junctions and
quantum aspects of acoustic analogue of Hawking radiation in existing experimental setups. |
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