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Title: Core structure of two-dimensional Fermi gas vortices in the BEC-BCS crossover region

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 pro les, and vortex core properties related to the current. We nd 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.

Authors:
 [1];  [2];  [1]
  1. Arizona State Univ., Mesa, AZ (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC). Nuclear Physics (NP) (SC-26); USDOE
OSTI Identifier:
1406210
Alternate Identifier(s):
OSTI ID: 1355068
Report Number(s):
LA-UR-17-21896
Journal ID: ISSN 2469-9926; PLRAAN; TRN: US1703256
Grant/Contract Number:  
AC52-06NA25396; AC02-05CH11231
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 95; Journal Issue: 5; Journal ID: ISSN 2469-9926
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; Atomic and Nuclear Physics

Citation Formats

Madeira, Lucas, Gandolfi, Stefano, and Schmidt, Kevin E. Core structure of two-dimensional Fermi gas vortices in the BEC-BCS crossover region. United States: N. p., 2017. Web. doi:10.1103/PhysRevA.95.053603.
Madeira, Lucas, Gandolfi, Stefano, & Schmidt, Kevin E. Core structure of two-dimensional Fermi gas vortices in the BEC-BCS crossover region. United States. doi:10.1103/PhysRevA.95.053603.
Madeira, Lucas, Gandolfi, Stefano, and Schmidt, Kevin E. Tue . "Core structure of two-dimensional Fermi gas vortices in the BEC-BCS crossover region". United States. doi:10.1103/PhysRevA.95.053603. https://www.osti.gov/servlets/purl/1406210.
@article{osti_1406210,
title = {Core structure of two-dimensional Fermi gas vortices in the BEC-BCS crossover region},
author = {Madeira, Lucas and Gandolfi, Stefano and Schmidt, Kevin E.},
abstractNote = {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 pro les, and vortex core properties related to the current. We nd 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.},
doi = {10.1103/PhysRevA.95.053603},
journal = {Physical Review A},
number = 5,
volume = 95,
place = {United States},
year = {Tue May 02 00:00:00 EDT 2017},
month = {Tue May 02 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 2 works
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