期刊
PHYSICAL REVIEW A
卷 95, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.95.053603
关键词
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资金
- National Science Foundation [PHY-1404405, ACI-1053575]
- NUCLEI SciDAC program
- US DOE [DE-AC52-06NA25396]
- LANL LDRD program
- Office of Science of the US Department of Energy [DE-AC02-05CH11231]
- Direct For Mathematical & Physical Scien
- Division Of Physics [1404405] Funding Source: National Science Foundation
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.
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