Coherent control of self-trapping of cold bosonic atoms

被引：32

作者：

Creffield, C. E. ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW A | 2007年 / 75卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.75.031607

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the behavior of ultracold bosonic atoms held in an optical lattice. We first show how a self-trapping transition can be induced in the system either by increasing the number of atoms occupying a lattice site or by raising the interaction strength above a critical value. We then investigate how applying a periodic driving potential to the self-trapped state can be used to coherently control the emission of a precise number of correlated bosons from the trapping site. This allows the preparation and transport of entangled bosonic states, which are of great relevance to novel technologies such as quantum-information processing.

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