Lifetime of Wannier-Stark states

被引:34
作者
Gluck, M [1 ]
Kolovsky, AR [1 ]
Korsch, HJ [1 ]
机构
[1] Univ Kaiserslautern, Fachbereich Phys, D-67653 Kaiserslautern, Germany
关键词
D O I
10.1103/PhysRevLett.83.891
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The lifetime of a Bloch particle in a homogeneous field is calculated numerically as a function of the field amplitude. A simple model explaining the characteristic features of the field dependence of the lifetime is introduced. The theoretical results are compared with the experimental data of C.F. Bharucha et al. [Phys. Rev. A 55, R857 (1997)] obtained for cold sodium atoms in an accelerated optical lattice.
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收藏
页码:891 / 894
页数:4
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