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

Madeira, Lucas; Gandolfi, Stefano; Schmidt, Kevin E.

doi:10.1103/PhysRevA.95.053603

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

Journal Article · Tue May 02 00:00:00 EDT 2017 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.95.053603· OSTI ID:1406210

Madeira, Lucas ^[1]; Gandolfi, Stefano ^[2]; Schmidt, Kevin E. ^[1]

Arizona State Univ., Mesa, AZ (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

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.

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Research Organization:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE Office of Science (SC). Nuclear Physics (NP) (SC-26); USDOE

Grant/Contract Number:: AC52-06NA25396; AC02-05CH11231

OSTI ID:: 1406210

Alternate ID(s):: OSTI ID: 1355068

Report Number(s):: LA-UR-17-21896; PLRAAN; TRN: US1703256

Journal Information:: Physical Review A, Vol. 95, Issue 5; ISSN 2469-9926

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 9 works

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Nonperturbative renormalization group treatment of amplitude fluctuations for ${\| φ \|}^{4}$ topological phase transitions Defenu, Nicolò; Trombettoni, Andrea; Nándori, István Physical Review B, Vol. 96, Issue 17 https://doi.org/10.1103/physrevb.96.174505	journal	November 2017

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