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 |