首页> 外文会议>High-Capacity Optical Networks and Enabling Technologies (HONET), 2009 >Adiabatic coherent quantum tunneling of ultracold atoms trapped in an asymmetrical two-dimensional magnetic lattices
【24h】

Adiabatic coherent quantum tunneling of ultracold atoms trapped in an asymmetrical two-dimensional magnetic lattices

机译:捕获在非对称二维磁晶格中的超冷原子的绝热相干量子隧穿

获取原文

摘要

We propose a new method to realize a two-dimensional magnetic lattice, having two different configurations of asymmetric magnetic lattice, which exhibits magnetic band gap structure, and a symmetric magnetic lattice. We also describe the tunneling mechanisms of magnetically trapped ultracold atoms, prepared in a degenerate quantum gas such as Bose-Einstein Condensate (BEC). A coherent quantum tunneling of ultracold atoms between the sites of the asymmetrical magnetic lattice can be realized which induces the adiabatically controlled dc Josephson current. At critical phase transitions, namely at certain values of site phase difference and population fraction, a plasma oscillation can be observed in which it forms a discharging Josephson state to be used as coherently coupled n quantum bits.
机译:我们提出了一种新的实现二维磁晶格的方法,该方法具有两种不同的非对称磁晶格结构和对称磁晶格结构,其中非对称磁晶格具有磁带隙结构。我们还描述了在简并的量子气体(如玻色-爱因斯坦凝聚物(BEC))中制备的磁性捕获超冷原子的隧穿机理。可以实现非对称磁性晶格位置之间超冷原子的相干量子隧穿,从而诱发绝热控制的直流约瑟夫森电流。在临界相变时,即在一定的位相差值和总体分数时,可以观察到等离子体振荡,在等离子体振荡中形成放电约瑟夫森状态,用作相干耦合的n个量子比特。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号