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