On the transport of atomic ions in linear and multidimensional ion trap arrays
On the transport of atomic ions in linear and multidimensional ion trap arrays
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DOI：
10.26421/qic8.6-7-1
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发表时间：
2007-02
期刊：
影响因子：
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通讯作者：
D. Hucul;M. Yeo;S. Olmschenk;C. Monroe;W. Hensinger;J. Rabchuk
中科院分区：
文献类型：
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作者：
D. Hucul;M. Yeo;S. Olmschenk;C. Monroe;W. Hensinger;J. Rabchuk
被捕获的原子离子已经成为量子计算机最有前途的架构之一，并且目前的努力现在致力于通过复杂的分段离子阱结构来传输被捕获的离子，以便按比例放大到更大数量的被捕获的离子量子位。本文讨论了在任何类型的复杂多维射频（保罗）离子阱阵列中离子输运的几个重要问题。我们开发了一个一般的理论框架的应用程序随时间变化的电场穿梭激光冷却离子沿着任何所需的轨迹，并描述了一种方法来确定任意穿梭时间表上的量子态的捕获离子运动的影响。除了在短距离线性穿梭的一般情况下，我们引入的问题，特别是穿梭通过多维路口，这是所需的任意控制的位置的大型阵列的被困离子。这包括离子在拐角处的传输，通过十字或T结，以及激光冷却晶体中多个离子的位置交换。在可能的情况下，我们最近的实验结果在一个多维的T结陷阱，实现了任意的2维运输。
Trapped atomic ions have become one of the most promising architectures for a quantum computer, and current effort is now devoted to the transport of trapped ions through complex segmented ion trap structures in order to scale up to much larger numbers of trapped ion qubits. This paper covers several important issues relevant to ion transport in any type of complex multidimensional rf (Paul) ion trap array. We develop a general theoretical framework for the application of time-dependent electric fields to shuttle laser-cooled ions along any desired trajectory, and describe a method for determining the effect of arbitrary shuttling schedules on the quantum state of trapped ion motion. In addition to the general case of linear shuttling over short distances, we introduce issues particular to the shuttling through multidimensional junctions, which are required for the arbitrary control of the positions of large arrays of trapped ions. This includes the transport of ions around a corner, through a cross or T junction, and the swapping of positions of multiple ions in a laser-cooled crystal. Where possible, we make connections to recent experimental results in a multidimensional T junction trap, where arbitrary 2-dimensional transport was realized.