中国物理B ›› 2018, Vol. 27 ›› Issue (12): 126701-126701.doi: 10.1088/1674-1056/27/12/126701

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

Bloch oscillation of Weyl metal along synthetic dimensions

Ye Xiong(熊烨)   

  1. Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210023, China
  • 收稿日期:2018-08-22 修回日期:2018-11-12 出版日期:2018-12-05 发布日期:2018-12-05
  • 通讯作者: Ye Xiong E-mail:xiongye@njnu.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant No. 11774177).

Bloch oscillation of Weyl metal along synthetic dimensions

Ye Xiong(熊烨)   

  1. Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210023, China
  • Received:2018-08-22 Revised:2018-11-12 Online:2018-12-05 Published:2018-12-05
  • Contact: Ye Xiong E-mail:xiongye@njnu.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant No. 11774177).

摘要:

Synthetic dimensions in time (Sambe space) can be utilized in a periodic time-dependent system. By subjecting the system into a time-periodic potential and measuring the physical quantities at distinct time in one period, one is able to simulate the models in higher dimension. To verify this approach, we show that the Bloch oscillation of wave packets along the magnetic field in a three-dimensional (3D) Weyl metal can be simulated on a two-dimensional (2D) insulator. Different from the chiral anomaly, this Bloch oscillation is anisotropic when the initial wave packet is not on the 0-th Landau level.

关键词: synthetic dimensions, Weyl metal

Abstract:

Synthetic dimensions in time (Sambe space) can be utilized in a periodic time-dependent system. By subjecting the system into a time-periodic potential and measuring the physical quantities at distinct time in one period, one is able to simulate the models in higher dimension. To verify this approach, we show that the Bloch oscillation of wave packets along the magnetic field in a three-dimensional (3D) Weyl metal can be simulated on a two-dimensional (2D) insulator. Different from the chiral anomaly, this Bloch oscillation is anisotropic when the initial wave packet is not on the 0-th Landau level.

Key words: synthetic dimensions, Weyl metal

中图分类号:  (Ultracold gases, trapped gases)

  • 67.85.-d
03.75.Lm (Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations) 74.20.Rp (Pairing symmetries (other than s-wave))