Coherent control of self-trapping of cold bosonic atoms
Coherent control of self-trapping of cold bosonic atoms
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DOI：
10.1103/physreva.75.031607
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发表时间：
2007-03-01
影响因子：
2.9
通讯作者：
Creffield, C. E.
中科院分区：
文献类型：
--
作者：
Creffield, C. E.
我们研究光学晶格中超冷玻色子原子的行为。我们首先展示了如何通过增加占据晶格位点的原子数量或将相互作用强度提高到临界值以上来在系统中引发自捕获跃迁。然后，我们研究如何将周期性驱动势应用于自捕获态，以连贯地控制从捕获位点发射精确数量的相关玻色子。这使得纠缠玻色子态的制备和传输成为可能，这与量子信息处理等新技术密切相关。
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.