中国物理B ›› 2019, Vol. 28 ›› Issue (1): 10306-010306.doi: 10.1088/1674-1056/28/1/010306

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇    下一篇

Analytical treatment of Anderson localization in a chain of trapped ions experiencing laser Bessel beams

Jun Wen(文军), Jian-Qi Zhang(张建奇), Lei-Lei Yan(闫磊磊), Mang Feng(冯芒)   

  1. 1 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China;
    2 School of Physics, University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2018-09-18 修回日期:2018-11-14 出版日期:2019-01-05 发布日期:2019-01-05
  • 通讯作者: Mang Feng E-mail:mangfeng@wipm.ac.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11734018, 11674360, 11404377, and 91636220).

Analytical treatment of Anderson localization in a chain of trapped ions experiencing laser Bessel beams

Jun Wen(文军)1,2, Jian-Qi Zhang(张建奇)1, Lei-Lei Yan(闫磊磊)1, Mang Feng(冯芒)1   

  1. 1 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China;
    2 School of Physics, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2018-09-18 Revised:2018-11-14 Online:2019-01-05 Published:2019-01-05
  • Contact: Mang Feng E-mail:mangfeng@wipm.ac.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11734018, 11674360, 11404377, and 91636220).

摘要:

Trapped ions, under electromagnetic confinement and Coulomb repulsion, can behave as non-interacting particles in one-dimensional lattices. Here we explore analytically the possible effects regarding Anderson localization in a chain of trapped ions experiencing laser Bessel beams. Under an experimentally feasible condition, we predict an analytical form of the energy-dependent mobility edges, which is verified to be in good agreement with the exact numerical results except for the top band. Some other important properties regarding the phonon localization in the ion chain are also discussed both analytically and numerically. Our results are relevant to experimental observation of localization-delocalization transition in the ion trap and helpful for deeper understanding of the rich phenomena due to long-range phonon hopping.

关键词: mobility edge, localization, eigenstates, critical values

Abstract:

Trapped ions, under electromagnetic confinement and Coulomb repulsion, can behave as non-interacting particles in one-dimensional lattices. Here we explore analytically the possible effects regarding Anderson localization in a chain of trapped ions experiencing laser Bessel beams. Under an experimentally feasible condition, we predict an analytical form of the energy-dependent mobility edges, which is verified to be in good agreement with the exact numerical results except for the top band. Some other important properties regarding the phonon localization in the ion chain are also discussed both analytically and numerically. Our results are relevant to experimental observation of localization-delocalization transition in the ion trap and helpful for deeper understanding of the rich phenomena due to long-range phonon hopping.

Key words: mobility edge, localization, eigenstates, critical values

中图分类号:  (Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations)

  • 03.75.Lm
05.50.+q (Lattice theory and statistics) 64.60.Cn (Order-disorder transformations) 63.20.-e (Phonons in crystal lattices)