| Full text | |
| Author(s): |
Total Authors: 3
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| Affiliation: | [1] Univ Fed Goicis UFG, Inst Fis, BR-74001970 Goiania, Go - Brazil
[2] Univ Estadual Campinas, UNICAMP, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP - Brazil
[3] Leibniz Univ Hannover, Inst Theoret Phys, D-30167 Hannover - Germany
Total Affiliations: 3
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| Document type: | Journal article |
| Source: | Physical Review A; v. 104, n. 4 OCT 19 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
Quantum Monte Carlo techniques are employed to study the properties of polarons in an ultracold Fermi gas, at T = 0, and in the unitary regime using both a zero-range model and a square-well potential. For a fixed density, the potential range is varied and results are extrapolated and compared against a zero-range model. A discussion regarding the choice of an interacting potential with a finite range is presented. We compute the polaron effective mass, the polaron binding energy, and the effective coupling between them. The latter is obtained using the Landau-Pomeranchuk's weakly interacting quasiparticle model. The contact parameter is estimated by fitting the pair distribution function of atoms in different spin states. (AU) | |
| FAPESP's process: | 16/17612-7 - Dynamics of many-body systems IV |
| Grantee: | Arnaldo Gammal |
| Support Opportunities: | Research Projects - Thematic Grants |