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Dong, H.; Hu, Hui; Liu, Xia-Ji; Drummond, Peter D.; Dong, H , Swinburne Univ Technol, ARC Ctr Excellence Quantum Atom Opt, Ctr Atom Opt & Ultrafast Spect, Melbourne, Vic 3122, Australia
Mean-field study of itinerant ferromagnetism in trapped ultracold Fermi gases: Beyond the local-density approximation
Source PublicationPHYSICAL REVIEW A
AbstractWe theoretically investigate the itinerant ferromagnetic transition of a spherically trapped ultracold Fermi gas with spin imbalance under strongly repulsive interatomic interactions. Our study is based on a self-consistent solution of the Hartree-Fock mean-field equations beyond the widely used local-density approximation. We demonstrate that, while the local-density approximation holds in the paramagnetic phase, after the ferromagnetic transition it leads to a quantitative discrepancy in various thermodynamic quantities even with large atom numbers. We determine the position of the phase transition by monitoring the shape change of the free-energy curve with increasing the polarization at various interaction strengths.
2010
ISSN1050-2947
Volume82Issue:1Pages:-
Subject AreaPhysics
Indexed BySCI
Funding OrganizationARC[DP0984522, DP0984637]; NSFC[NSFC-10774190]; NFRPC[2006CB921404, 2006CB921306]; Australian Research Council (ARC) Centre of Excellence for Quantum-Atom Optics ; ARC[DP0984522, DP0984637]; NSFC[NSFC-10774190]; NFRPC[2006CB921404, 2006CB921306]; Australian Research Council (ARC) Centre of Excellence for Quantum-Atom Optics ; ARC[DP0984522, DP0984637]; NSFC[NSFC-10774190]; NFRPC[2006CB921404, 2006CB921306]; Australian Research Council (ARC) Centre of Excellence for Quantum-Atom Optics ; ARC[DP0984522, DP0984637]; NSFC[NSFC-10774190]; NFRPC[2006CB921404, 2006CB921306]; Australian Research Council (ARC) Centre of Excellence for Quantum-Atom Optics
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Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5074
Collection理论物理所科研产出_SCI论文
Corresponding AuthorDong, H , Swinburne Univ Technol, ARC Ctr Excellence Quantum Atom Opt, Ctr Atom Opt & Ultrafast Spect, Melbourne, Vic 3122, Australia
Recommended Citation
GB/T 7714
Dong, H.,Hu, Hui,Liu, Xia-Ji,et al. Mean-field study of itinerant ferromagnetism in trapped ultracold Fermi gases: Beyond the local-density approximation[J]. PHYSICAL REVIEW A,2010,82(1):-.
APA Dong, H.,Hu, Hui,Liu, Xia-Ji,Drummond, Peter D.,&Dong, H , Swinburne Univ Technol, ARC Ctr Excellence Quantum Atom Opt, Ctr Atom Opt & Ultrafast Spect, Melbourne, Vic 3122, Australia.(2010).Mean-field study of itinerant ferromagnetism in trapped ultracold Fermi gases: Beyond the local-density approximation.PHYSICAL REVIEW A,82(1),-.
MLA Dong, H.,et al."Mean-field study of itinerant ferromagnetism in trapped ultracold Fermi gases: Beyond the local-density approximation".PHYSICAL REVIEW A 82.1(2010):-.
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