Weakly-Interacting Bose–Bose Mixtures from the Functional Renormalisation Group
We provide a detailed presentation of the functional renormalisation group (FRG) approach for weakly-interacting Bose–Bose mixtures, including a complete discussion on the RG equations. To test this approach, we examine thermodynamic properties of balanced three-dimensional Bose–Bose gases at zero a...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Condensed Matter |
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| Online Access: | https://www.mdpi.com/2410-3896/7/1/9 |
| _version_ | 1797472143620964352 |
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| author | Felipe Isaule Ivan Morera |
| author_facet | Felipe Isaule Ivan Morera |
| author_sort | Felipe Isaule |
| collection | DOAJ |
| description | We provide a detailed presentation of the functional renormalisation group (FRG) approach for weakly-interacting Bose–Bose mixtures, including a complete discussion on the RG equations. To test this approach, we examine thermodynamic properties of balanced three-dimensional Bose–Bose gases at zero and finite temperatures and find a good agreement with related works. We also study ground-state energies of repulsive Bose polarons by examining mixtures in the limit of infinite population imbalance. Finally, we discuss future applications of the FRG to novel problems in Bose–Bose mixtures and related systems. |
| first_indexed | 2024-03-09T19:57:57Z |
| format | Article |
| id | doaj.art-5de785fd5ed34121a02add9d1ec9d607 |
| institution | Directory Open Access Journal |
| issn | 2410-3896 |
| language | English |
| last_indexed | 2024-03-09T19:57:57Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Condensed Matter |
| spelling | doaj.art-5de785fd5ed34121a02add9d1ec9d6072023-11-24T00:50:27ZengMDPI AGCondensed Matter2410-38962022-01-0171910.3390/condmat7010009Weakly-Interacting Bose–Bose Mixtures from the Functional Renormalisation GroupFelipe Isaule0Ivan Morera1School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UKDepartament de Física Quàntica i Astrofísica, Facultat de Física, and Institut de Ciències del Cosmos (ICCUB), Universitat de Barcelona, Martí i Franquès 1, E-08028 Barcelona, SpainWe provide a detailed presentation of the functional renormalisation group (FRG) approach for weakly-interacting Bose–Bose mixtures, including a complete discussion on the RG equations. To test this approach, we examine thermodynamic properties of balanced three-dimensional Bose–Bose gases at zero and finite temperatures and find a good agreement with related works. We also study ground-state energies of repulsive Bose polarons by examining mixtures in the limit of infinite population imbalance. Finally, we discuss future applications of the FRG to novel problems in Bose–Bose mixtures and related systems.https://www.mdpi.com/2410-3896/7/1/9quantum gasesBose–Bose mixturesbose polaronsrenormalisation group |
| spellingShingle | Felipe Isaule Ivan Morera Weakly-Interacting Bose–Bose Mixtures from the Functional Renormalisation Group Condensed Matter quantum gases Bose–Bose mixtures bose polarons renormalisation group |
| title | Weakly-Interacting Bose–Bose Mixtures from the Functional Renormalisation Group |
| title_full | Weakly-Interacting Bose–Bose Mixtures from the Functional Renormalisation Group |
| title_fullStr | Weakly-Interacting Bose–Bose Mixtures from the Functional Renormalisation Group |
| title_full_unstemmed | Weakly-Interacting Bose–Bose Mixtures from the Functional Renormalisation Group |
| title_short | Weakly-Interacting Bose–Bose Mixtures from the Functional Renormalisation Group |
| title_sort | weakly interacting bose bose mixtures from the functional renormalisation group |
| topic | quantum gases Bose–Bose mixtures bose polarons renormalisation group |
| url | https://www.mdpi.com/2410-3896/7/1/9 |
| work_keys_str_mv | AT felipeisaule weaklyinteractingbosebosemixturesfromthefunctionalrenormalisationgroup AT ivanmorera weaklyinteractingbosebosemixturesfromthefunctionalrenormalisationgroup |