Vortices in Fermi gases with spin-dependent rotation potentials
| Autor: | Jacques Tempere, T. Ichmoukhamedov |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics Condensed matter physics FOS: Physical sciences Rotation 01 natural sciences 010305 fluids & plasmas Vortex Superfluidity Quantum Gases (cond-mat.quant-gas) 0103 physical sciences Effective field theory Condensed Matter - Quantum Gases 010306 general physics Spin (physics) Fermi gas Hyperfine structure Fermi Gamma-ray Space Telescope |
| Zdroj: | PHYSICAL REVIEW A |
| ISSN: | 2469-9934 2469-9926 |
| Popis: | The rotation of two-component Fermi gases and the subsequent appearance of vortices have been the subject of numerous experimental and theoretical studies. Recent experimental advances in hyperfine state-dependent potentials and highly degenerate heteronuclear Fermi gases suggest that it would be feasible to create component-dependent rotation potentials in future experiments. In this study we use an effective field theory for Fermi gases to consider the effects of rotating only one component of the Fermi gas. We find that the superfluid band gap in bulk exists up to higher rotation frequencies because the superfluid at rest, far away from the vortex, has to resist only half of the rotational effects. The vortex remains the energetically favorable state above a critical frequency but exhibits a larger core size. Comment: 15 pages, 2 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|