Publication
Title
Soliton-core filling in superfluid Fermi gases with spin imbalance
Author
Abstract
In this paper the properties of dark solitons in superfluid Fermi gases with spin imbalance are studied by means of a recently developed effective field theory [Eur. Phys. J. B 88, 122 ( 2015)] suitable to describe the BEC-BCS crossover in ultracold gases in an extended range of temperatures as compared to the usual Ginzburg-Landau treatments. The spatial profiles for the total density and for the density of the excess-spin component, and the changes of their properties across the BEC-BCS crossover are examined in different conditions of temperature and imbalance. The presence of population imbalance is shown to strongly affect the structure of the soliton excitation by filling its core with unpaired atoms. This in turn influences the dynamical properties of the soliton since the additional particles in the core have to be dragged along thus altering the effective mass.
Language
English
Source (journal)
Physical review : A : atomic, molecular and optical physics. - Lancaster, Pa, 1990 - 2015
Publication
Lancaster, Pa : 2016
ISSN
1094-1622 [online]
1050-2947 [print]
Volume/pages
93:1(2016), 9 p.
Article Reference
013614
ISI
000368290900016
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
[E?say:metaLocaldata.cgzprojectinf]
Quantum turbulence in atomic and solid state Bose-Einstein condensates.
Quantum simulation of polaronic effects in quantum gases.
Nonlinear Transport of the Wigner Solid on a Superfluid 4He in a Quasi-One- Dimensional Channel.
Superfluidity and superconductivity in multicomponent quantum condensates.
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 16.02.2016
Last edited 01.08.2017
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