Phase diagrams of the Bose-Fermi-Hubbard model: Hubbard operator approach
The phase transitions in the Bose-Fermi-Hubbard model are investigated. The boson Green's function is calculated in the random phase approximation (RPA) and the formalism of the Hubbard operators is used. The regions of existence of the superfluid and Mott insulator phases are established and t...
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| Published in: | Condensed Matter Physics |
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| Date: | 2010 |
| Main Authors: | , , |
| Format: | Article |
| Language: | English |
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Інститут фізики конденсованих систем НАН України
2010
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/32041 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Phase diagrams of the Bose-Fermi-Hubbard model: Hubbard operator approach / I.V. Stasyuk, T.S. Mysakovych, V.O. Krasnov // Condensed Matter Physics. — 2010. — Т. 13, № 1. — С. 13003: 1-7. — Бібліогр.: 16 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862748712784101376 |
|---|---|
| author | Stasyuk, I.V. Mysakovych, T.S. Krasnov, V.O. |
| author_facet | Stasyuk, I.V. Mysakovych, T.S. Krasnov, V.O. |
| citation_txt | Phase diagrams of the Bose-Fermi-Hubbard model: Hubbard operator approach / I.V. Stasyuk, T.S. Mysakovych, V.O. Krasnov // Condensed Matter Physics. — 2010. — Т. 13, № 1. — С. 13003: 1-7. — Бібліогр.: 16 назв. — англ. |
| collection | DSpace DC |
| container_title | Condensed Matter Physics |
| description | The phase transitions in the Bose-Fermi-Hubbard model are investigated. The boson Green's function is calculated in the random phase approximation (RPA) and the formalism of the Hubbard operators is used. The regions of existence of the superfluid and Mott insulator phases are established and the (μ,t) (the boson chemical potential vs. hopping parameter) phase diagrams are built at different values of boson-fermion interaction constant (in the regimes of fixed chemical potential or fixed concentration of fermions). The effect of temperature change on this transition is analyzed and the phase diagrams in the (T,μ) plane are constructed. The role of thermal activation of the ion hopping is investigated by taking into account the temperature dependence of the transfer parameter. The reconstruction of the Mott-insulator lobes due to this effect is analyzed.
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| first_indexed | 2025-12-07T20:56:35Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-32041 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1607-324X |
| language | English |
| last_indexed | 2025-12-07T20:56:35Z |
| publishDate | 2010 |
| publisher | Інститут фізики конденсованих систем НАН України |
| record_format | dspace |
| spelling | Stasyuk, I.V. Mysakovych, T.S. Krasnov, V.O. 2012-04-06T17:29:09Z 2012-04-06T17:29:09Z 2010 Phase diagrams of the Bose-Fermi-Hubbard model: Hubbard operator approach / I.V. Stasyuk, T.S. Mysakovych, V.O. Krasnov // Condensed Matter Physics. — 2010. — Т. 13, № 1. — С. 13003: 1-7. — Бібліогр.: 16 назв. — англ. 1607-324X PACS: 03.75.Lm, 37.10.Jk, 67.85.Pq https://nasplib.isofts.kiev.ua/handle/123456789/32041 The phase transitions in the Bose-Fermi-Hubbard model are investigated. The boson Green's function is calculated in the random phase approximation (RPA) and the formalism of the Hubbard operators is used. The regions of existence of the superfluid and Mott insulator phases are established and the (μ,t) (the boson chemical potential vs. hopping parameter) phase diagrams are built at different values of boson-fermion interaction constant (in the regimes of fixed chemical potential or fixed concentration of fermions). The effect of temperature change on this transition is analyzed and the phase diagrams in the (T,μ) plane are constructed. The role of thermal activation of the ion hopping is investigated by taking into account the temperature dependence of the transfer parameter. The reconstruction of the Mott-insulator lobes due to this effect is analyzed. en Інститут фізики конденсованих систем НАН України Condensed Matter Physics Phase diagrams of the Bose-Fermi-Hubbard model: Hubbard operator approach Фазові діаграми моделі Бозе - Фермі - Габбарда: метод операторів Габбарда Article published earlier |
| spellingShingle | Phase diagrams of the Bose-Fermi-Hubbard model: Hubbard operator approach Stasyuk, I.V. Mysakovych, T.S. Krasnov, V.O. |
| title | Phase diagrams of the Bose-Fermi-Hubbard model: Hubbard operator approach |
| title_alt | Фазові діаграми моделі Бозе - Фермі - Габбарда: метод операторів Габбарда |
| title_full | Phase diagrams of the Bose-Fermi-Hubbard model: Hubbard operator approach |
| title_fullStr | Phase diagrams of the Bose-Fermi-Hubbard model: Hubbard operator approach |
| title_full_unstemmed | Phase diagrams of the Bose-Fermi-Hubbard model: Hubbard operator approach |
| title_short | Phase diagrams of the Bose-Fermi-Hubbard model: Hubbard operator approach |
| title_sort | phase diagrams of the bose-fermi-hubbard model: hubbard operator approach |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/32041 |
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