期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

一维费米原子系统中的拓扑超流和Majorana费米子 被引量：2

Topological superfluid and Majorana fermions in one-dimensional fermionic atomic systems
下载PDF
导出
摘要 通过数值求解Bogoliubov de Gennes方程,研究了具有自旋轨道耦合作用的一维费米晶格系统的性质.结果表明:在有限的自旋轨道耦合下和一定的磁场强度时,系统具有零能,此时的准粒子即为Majorana费米子.准无序效应研究表明,Majorana费米子不会被弱准无序所破坏. It was studied the properties of one-dimensional fermionic atomic systems of spin-orbital couplings by means of numerically solving the Bogoliubov de Gennes equations. It was showed that, under the finite spin-orbital coupling strength and strong enough magnetic field, the system would be of zero energy, which be-haved as the Majorana fermions. The effects of the quasi-disorder on the Majorana wave functions were also studied, which had little influence on the localization of the Majorana fermions.
作者 高先龙 陈捷 陈阿海
机构地区 浙江师范大学数理与信息工程学院
出处 《浙江师范大学学报（自然科学版）》 CAS 2013年第4期372-378,共7页 Journal of Zhejiang Normal University:Natural Sciences
基金 国家自然科学基金资助项目(11174253)
关键词 拓扑超流 光晶格 Majorana费米子 零能 准无序 ： topological superfluid optical lattice Majorana fermions zero energy quasi-disorder
分类号 O562.4 [理学—原子与分子物理]
  • 相关文献

参考文献35

  • 1Lewenstein M,Sanpera A,Ahufinger V. Ultracold atomic gases in optical lattices:mimicking condensed matter physics and beyond[J].{H}Advances in Physics,2007.243-379.
  • 2Billy J,Josse V,Zuo Zhanchun. Direct observation of Anderson localization of matter waves in a controlled disorder[J].{H}NATURE,2008.891-894.
  • 3Lin Y J,Compton R L,Jiménez-García K. Synthetic magnetic fields for ultracold neutral atoms[J].{H}NATURE,2009.628-632.
  • 4Lin Y J,Jimenez-Garcia K,Spielman I B. Spin-orbit-coupled Bose-Einstein condensates[J].{H}NATURE,2011.83-86.
  • 5Kane C L,Mele E J. Z2 topological order and the quantum spin hall effect[J].{H}Physical Review Letters,2005.146802.
  • 6K(o)nig M,Wiedmann S,Brüine C. Quantum spin hall insulator state in HgTe quantum wells[J].{H}SCIENCE,2007.766-770.
  • 7Wen X G. Quantum field theory of many-body systems[M].New York:Oxford University,2004.
  • 8Halperin B I. Quantized hall conductance,current-carrying edge states,and the existence of extended states in a two-dimensional disordered potential[J].{H}Physical Review B:Condensed Matter,1982.2185-2190.
  • 9Winkler R. Spin-orbit coupling effects in two-dimensional electron and hole systems[M].{H}Berlin:Springer-Verlag,2003.
  • 10Fu L,Kane C L. Superconducting proximity effect and majorana fermions at the surface of a topological insulator[J].{H}Physical Review Letters,2008.096407.

同被引文献18

  • 1Lewenstein M, Sanpera A, Ahufinger V, et al. Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond [ J ]. Advances in Physics,2007,56 ( 2 ) :243 -379.
  • 2Lin Yuju, Jimenez-Garcia K, Spielman I B. Spin-orbit-coupled Bose-Einstein condensates [ J ]. Nature,2011,471 ( 7336 ) : 83-86.
  • 3Wang Pengjun, Yu Zengqiang, Fu Zhengkun, et al. Spin-orbit coupled degenerate Fermi gases [ J ]. Physical Review Letters, 2012,109 ( 9 ) : 095301.
  • 4Zhang Chuanwei ,Tewari S, Lutchyn R M, et al. P,, + ipy superfluid from s-wave interactions of fermionic cold atoms [ J ]. Physical Review Let- ters ,2008,101 (16) : 160401.
  • 5Liu Xiaji,Jiang Lei,Pu Han,et al. Probing majorana fcrmions in spin-orbit-coupled atomic Fermi gases[J]. Physical Review A,2012,85(2) : 021603.
  • 6Wilczek F. Majorana returns [ J ]. Nature Physics,2009,5 ( 9 ) : 614 -618.
  • 7Nayak C, Simon S H, Stem A, et al. Non-Abelian anyons and topological quantum computation[ J ]. Reviews of Modem Physics ,2008,80 (3) : 1083.
  • 8Wu Fan, Guo Guangcan,Zhang Wei, et al. Unconventional superfluid in a two-dimensional Fermi gas with anisotropic spin-orbit coupling and Zeeman fields [ J ]. Physical Review Letters,2013,110 ( 11 ) : 110401.
  • 9Liao Y A, Rittner A S C, Paprotta T, et al. Spin-imbalance in a one-dimensional Fermi gas [ J ]. Nature, 2010,467 (7315 ) :567-569.
  • 10Liu Xiaji, Hu Hui. Topological superfluid in one-dimensional spin-orbit-coupled atomic Fermi gases [ J ]. Physical Review A, 2012,85 (3) : 033622.

引证文献2

浙江师范大学学报（自然科学版）
2013年 第4期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部