Universal van der Waals force between heavy polarons in superfluids
We investigate the long-range behavior of the induced Casimir interaction between two spinless heavy impurities, or polarons, in superfluid cold atomic gases. With the help of effective field theory (EFT) of a Galilean invariant superfluid, we show that the induced impurity-impurity potential at lon...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
30 November 2022
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| In: |
Physical review letters
Year: 2022, Volume: 129, Issue: 23, Pages: 1-7 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.129.233401 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.129.233401 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.129.233401 
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| Author Notes: | Keisuke Fujii, Masaru Hongo, and Tilman Enss |
| Summary: | We investigate the long-range behavior of the induced Casimir interaction between two spinless heavy impurities, or polarons, in superfluid cold atomic gases. With the help of effective field theory (EFT) of a Galilean invariant superfluid, we show that the induced impurity-impurity potential at long distance universally shows a relativistic van der Waals-like attraction (∼1/r7) resulting from the exchange of two superfluid phonons. We also clarify finite temperature effects from the same two-phonon exchange process. ... |
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| Item Description: | Gesehen am 14.11.2023 |
| Physical Description: | Online Resource |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.129.233401 |