Atomic Landau-Zener tunneling and Wannier-Stark ladders in optical potentials

被引:173
作者
Niu, Q [1 ]
Zhao, XG [1 ]
Georgakis, GA [1 ]
Raizen, MG [1 ]
机构
[1] ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
关键词
D O I
10.1103/PhysRevLett.76.4504
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We calculate the quantum motion of ultracold atoms in an accelerating optical potential, and show how they may be used to observe Landau-Zener tunneling and Wannier-Stark ladders, two fundamental quantum effects in solid state physics. The optical potential is spatially periodic, yielding an energy spectrum of Bloch bands for the atoms. The acceleration provides an inertial force in the moving frame, emulating an electric force on Bloch electrons.
引用
收藏
页码:4504 / 4507
页数:4
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