Many-body interband tunneling as a witness of complex dynamics in the Bose-Hubbard model

被引:35
|
作者
Tomadin, Andrea
Mannella, Riccardo
Wimberger, Sandro
机构
[1] Univ Pisa, Dipartmento Fis, I-56127 Pisa, Italy
[2] Politecn Torino, Dipartimento Fis, CNISM, I-10129 Turin, Italy
关键词
D O I
10.1103/PhysRevLett.98.130402
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A perturbative model is studied for the tunneling of many-particle states from the ground band to the first excited energy band, mimicking Landau-Zener decay for ultracold, spinless atoms in quasi-one-dimensional optical lattices subjected to a tunable tilting force. The distributions of the computed tunneling rates provide an independent and experimentally accessible signature of the regular-chaotic transition in the strongly correlated many-body dynamics of the ground band.
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收藏
页数:4
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