Abstract
We report T=0 diffusion Monte Carlo results for the ground-state and vortex excitation of unpolarized spin-1/2 fermions in a two-dimensional disk. We investigate how vortex core structure properties behave over the BEC-BCS crossover. We calculate the vortex excitation energy, density profiles, and vortex core properties related to the current. We find a density suppression at the vortex core on the BCS side of the crossover and a depleted core on the BEC limit. Size-effect dependencies in the disk geometry were carefully studied.
| Original language | English (US) |
|---|---|
| Article number | 053603 |
| Journal | Physical Review A |
| Volume | 95 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2 2017 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
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Madeira, L., Gandolfi, S., & Schmidt, K. (2017). Core structure of two-dimensional Fermi gas vortices in the BEC-BCS crossover region. Physical Review A, 95(5), [053603]. https://doi.org/10.1103/PhysRevA.95.053603