Rabi Coupled Fermions in the BCS–BEC Crossover
We investigate the three-dimensional BCS–BEC crossover in the presence of a Rabi coupling, which strongly affects several properties of the system, such as the chemical potential, the pairing gap and the superfluid density. We determine the critical interaction strength, below which the system is no...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
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| Series: | Condensed Matter |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2410-3896/7/4/59 |
| _version_ | 1797460790047932416 |
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| author | Luca Dell’Anna Federico De Bettin Luca Salasnich |
| author_facet | Luca Dell’Anna Federico De Bettin Luca Salasnich |
| author_sort | Luca Dell’Anna |
| collection | DOAJ |
| description | We investigate the three-dimensional BCS–BEC crossover in the presence of a Rabi coupling, which strongly affects several properties of the system, such as the chemical potential, the pairing gap and the superfluid density. We determine the critical interaction strength, below which the system is normal also at zero temperature. Finally, we calculate the effect of the Rabi coupling on the critical temperature of the superfluid-to-normal phase transition by using different theoretical schemes. |
| first_indexed | 2024-03-09T17:10:06Z |
| format | Article |
| id | doaj.art-2a42cd3073f546d4b6f2df2fa58995a3 |
| institution | Directory Open Access Journal |
| issn | 2410-3896 |
| language | English |
| last_indexed | 2024-03-09T17:10:06Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Condensed Matter |
| spelling | doaj.art-2a42cd3073f546d4b6f2df2fa58995a32023-11-24T14:07:45ZengMDPI AGCondensed Matter2410-38962022-10-01745910.3390/condmat7040059Rabi Coupled Fermions in the BCS–BEC CrossoverLuca Dell’Anna0Federico De Bettin1Luca Salasnich2Dipartimento di Fisica e Astronomia “G. Galilei” and QTech Center, Università di Padova, Via Marzolo 8, 35131 Padova, ItalyDipartimento di Fisica e Astronomia “G. Galilei” and QTech Center, Università di Padova, Via Marzolo 8, 35131 Padova, ItalyDipartimento di Fisica e Astronomia “G. Galilei” and QTech Center, Università di Padova, Via Marzolo 8, 35131 Padova, ItalyWe investigate the three-dimensional BCS–BEC crossover in the presence of a Rabi coupling, which strongly affects several properties of the system, such as the chemical potential, the pairing gap and the superfluid density. We determine the critical interaction strength, below which the system is normal also at zero temperature. Finally, we calculate the effect of the Rabi coupling on the critical temperature of the superfluid-to-normal phase transition by using different theoretical schemes.https://www.mdpi.com/2410-3896/7/4/59BCS–BEC crossoversuperfluiditycritical temperature |
| spellingShingle | Luca Dell’Anna Federico De Bettin Luca Salasnich Rabi Coupled Fermions in the BCS–BEC Crossover Condensed Matter BCS–BEC crossover superfluidity critical temperature |
| title | Rabi Coupled Fermions in the BCS–BEC Crossover |
| title_full | Rabi Coupled Fermions in the BCS–BEC Crossover |
| title_fullStr | Rabi Coupled Fermions in the BCS–BEC Crossover |
| title_full_unstemmed | Rabi Coupled Fermions in the BCS–BEC Crossover |
| title_short | Rabi Coupled Fermions in the BCS–BEC Crossover |
| title_sort | rabi coupled fermions in the bcs bec crossover |
| topic | BCS–BEC crossover superfluidity critical temperature |
| url | https://www.mdpi.com/2410-3896/7/4/59 |
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