Spin-polarized droplets in the unitary Fermi gas
| Autor: | Magierski, Piotr, Tüzemen, Buğra, Wlazłowski, Gabriel |
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| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Phys. Rev. A 100, 033613 (2019) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.100.033613 |
| Popis: | We demonstrate the existence of a new type of spatially localized excitations in the unitary Fermi gas: spin polarized droplets with a peculiar internal structure involving the abrupt change of the pairing phase at the surface of the droplet. It resembles the structure of the Josephson-$\pi$ junction occurring when a slice of a ferromagnet is sandwiched between two superconductors. The stability of the impurity is enhanced by the mutual interplay between the polarization effects and the pairing field, resulting in an exceptionally long-lived state. The prospects for its realization in experiment are discussed. Comment: Manuscript with included Supplementary Material. Published version. Accompanying movies are available at http://wlazlowski.fizyka.pw.edu.pl/supplement/2/ |
| Databáze: | arXiv |
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