Theoretical analysis of super-Bloch oscillations

被引：65

作者：

Kudo, K. ^{[1
]}

Monteiro, T. S. ^{[2
]}

机构：

[1] Ochanomizu Univ, Div Adv Sci, Bunkyo Ku, Tokyo 1128610, Japan

[2] UCL, Dept Phys & Astron, London WC1E 6BT, England

来源：

PHYSICAL REVIEW A | 2011年 / 83卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.83.053627

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Several recent studies have investigated the dynamics of cold atoms in optical lattices subject to ac forcing; the theoretically predicted renormalization of the tunneling amplitudes has been verified experimentally. Recent observations include global motion of the atom cloud, such as giant "super-Bloch oscillations" (SBOs). We show that, in order to understand unexplained features of SBOs, in addition to the renormalization of the tunneling, a new and important phase correction must be included. For fermionic systems with strong attractive interactions, one may engineer different types of collisions and recollisions between bound-pairs and unpaired atoms.

引用

页数：6

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