Behavior of the impurity atom in a weakly-interacting Bose gas
We studied the properties of a single impurity atom immersed in a dilute Bose condensate at low temperatures.
 In particular, we perturbatively obtained the momentum dependence of the impurity spectrum and damping.
 By means of the Brillouin-Wigner perturbation theory we also calcula...
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| Veröffentlicht in: | Condensed Matter Physics |
|---|---|
| Datum: | 2017 |
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | Englisch |
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Інститут фізики конденсованих систем НАН України
2017
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/156974 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Behavior of the impurity atom in a weakly-interacting Bose gas / G. Panochko, V. Pastukhov, I. Vakarchuk // Condensed Matter Physics. — 2017. — Т. 20, № 1. — С. 13604: 1–11
 . — Бібліогр.: 19 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862530016433143808 |
|---|---|
| author | Panochko, G. Pastukhov, V. Vakarchuk, I. |
| author_facet | Panochko, G. Pastukhov, V. Vakarchuk, I. |
| citation_txt | Behavior of the impurity atom in a weakly-interacting Bose gas / G. Panochko, V. Pastukhov, I. Vakarchuk // Condensed Matter Physics. — 2017. — Т. 20, № 1. — С. 13604: 1–11
 . — Бібліогр.: 19 назв. — англ. |
| collection | DSpace DC |
| container_title | Condensed Matter Physics |
| description | We studied the properties of a single impurity atom immersed in a dilute Bose condensate at low temperatures.
In particular, we perturbatively obtained the momentum dependence of the impurity spectrum and damping.
By means of the Brillouin-Wigner perturbation theory we also calculated the self-energy both for attractive and
repulsive polaron in the long-wavelength limit. The stability problem of the impurity atom in a weakly-interacting
Bose gas is also examined.
В роботi вивчено поведiнку домiшкового атома у розрiдженому бозе-конденсатi в границi низьких температур. Отримано пертурбативним методом спектр домiшки та його загасання в залежностi вiд iмпульсу. В
рамках теорiї збурень Брiлюена–Вiгнера знайдено власну енергiю притягального та вiдштовхувального
полярона в довгохвильовiй границi. Також вивчено питання стабiльностi полярона в слабковзаємодiючому бозе-газi.
|
| first_indexed | 2025-11-24T02:43:45Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-156974 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| isbn | arXiv:1703.10390 |
| issn | 1607-324X |
| language | English |
| last_indexed | 2025-11-24T02:43:45Z |
| publishDate | 2017 |
| publisher | Інститут фізики конденсованих систем НАН України |
| record_format | dspace |
| spelling | Panochko, G. Pastukhov, V. Vakarchuk, I. 2019-06-19T12:09:16Z 2019-06-19T12:09:16Z 2017 Behavior of the impurity atom in a weakly-interacting Bose gas / G. Panochko, V. Pastukhov, I. Vakarchuk // Condensed Matter Physics. — 2017. — Т. 20, № 1. — С. 13604: 1–11
 . — Бібліогр.: 19 назв. — англ. arXiv:1703.10390 1607-324X PACS: 67.60.Bc, 03.75.Hh DOI:10.5488/CMP.20.13604 arXiv:1703.10390 https://nasplib.isofts.kiev.ua/handle/123456789/156974 We studied the properties of a single impurity atom immersed in a dilute Bose condensate at low temperatures.
 In particular, we perturbatively obtained the momentum dependence of the impurity spectrum and damping.
 By means of the Brillouin-Wigner perturbation theory we also calculated the self-energy both for attractive and
 repulsive polaron in the long-wavelength limit. The stability problem of the impurity atom in a weakly-interacting
 Bose gas is also examined. В роботi вивчено поведiнку домiшкового атома у розрiдженому бозе-конденсатi в границi низьких температур. Отримано пертурбативним методом спектр домiшки та його загасання в залежностi вiд iмпульсу. В
 рамках теорiї збурень Брiлюена–Вiгнера знайдено власну енергiю притягального та вiдштовхувального
 полярона в довгохвильовiй границi. Також вивчено питання стабiльностi полярона в слабковзаємодiючому бозе-газi. This work was partly supported by Project FF-30F (No. 0116U001539) from the Ministry of Education
 and Science of Ukraine. The authors appreciate the help of Dr. Mykola Stetsko in the preparation of this
 article.
 One of the authors (I. Vakarchuk) expresses satisfaction with the fact that he was invited to participate
 in the publication of articles in honor of Yu. Holovatch. He has been one of my first students (since his
 schooldays), who defended his thesis on phase transitions, and is engaged now in the research of complex
 systems of non-physical nature using methods of statistical physics. I wish him new successes in this
 extremely interesting area of human activity en Інститут фізики конденсованих систем НАН України Condensed Matter Physics Behavior of the impurity atom in a weakly-interacting Bose gas Поведiнка домiшкового атома в слабковзаємодiючому бозе-газi Article published earlier |
| spellingShingle | Behavior of the impurity atom in a weakly-interacting Bose gas Panochko, G. Pastukhov, V. Vakarchuk, I. |
| title | Behavior of the impurity atom in a weakly-interacting Bose gas |
| title_alt | Поведiнка домiшкового атома в слабковзаємодiючому бозе-газi |
| title_full | Behavior of the impurity atom in a weakly-interacting Bose gas |
| title_fullStr | Behavior of the impurity atom in a weakly-interacting Bose gas |
| title_full_unstemmed | Behavior of the impurity atom in a weakly-interacting Bose gas |
| title_short | Behavior of the impurity atom in a weakly-interacting Bose gas |
| title_sort | behavior of the impurity atom in a weakly-interacting bose gas |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/156974 |
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