標題: Roton instabilities and correlated Wigner crystals of rotating dipolar fermions in the fractional quantum Hall regime
作者: Jheng, Shih-Da
Jiang, T. F.
Cheng, Szu-Cheng
物理研究所
Institute of Physics
公開日期: 4-十一月-2013
摘要: We point out that the Wigner crystal (WC) state of rotating dipolar fermions in the lowest Landau level is strongly correlated. From intra-Landau-level excitations of the fractional quantum Hall effect (FQHE) liquid, we find that the roton minimum of the excitation spectrum at. nu = 1/7 becomes negative, indicating an absence of the FQHE state, which is supposed to be the ground state of the system. Therefore, we show that the Hartree-Fock theory of the WC does not predict the correct ground-state energy in the lowest Landau level. There exists a strong correlation effect on the Wigner crystallization of rotating dipolar gases.
URI: http://dx.doi.org/10.1103/PhysRevA.88.051601
http://hdl.handle.net/11536/22931
ISSN: 1050-2947
DOI: 10.1103/PhysRevA.88.051601
期刊: PHYSICAL REVIEW A
Volume: 88
Issue: 5
結束頁: 
顯示於類別:期刊論文


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  1. 000326504800002.pdf