arXiv 2008.071282020-08quant-phphysics.class-ph

改进了对作为机电系统的俘获离子的描述

Improved description of trapped ions as an electro-mechanical system

Noah Van Horne, Manas Mukherjee

备注：: 15 pages, 6 figures

摘要：

囚禁离子是量子计算技术的主要候选者之一。将离子量子比特连接在单独的陷阱中以及将离子量子比特与超导量子比特连接是扩大量子计算机的许多挑战中的两个。克服这两个问题的一种方法是使用导线来调解不同陷阱中的离子之间或离子与超导量子位之间的库仑相互作用。为此，在导体上感应电荷的被捕获的带电粒子长期以来被建模为等效集总元件电子部件的系统。仔细的考虑揭示了在推导这个模型时的两个假设，这两个假设在许多感兴趣的情况下是不合理的。我们确定这些假设，并解释其含义。此外，我们介绍了一种改进的方法，使用线性关系来描述被困离子与附近导体的相互作用。新的方法是基于现实的假设和再现的结果，从其他作品不是基于电路元件模型。它是针对故障排除实验设计，并允许实验来测试和比较不同的理论模型的准确性。

英文摘要：

Trapped ions are among the leading candidates for quantum computing technologies. Interfacing ion qubits in separate traps and interfacing ion qubits with superconducting qubits are two of the many challenges to scale up quantum computers. One approach to overcome both problems is to use a conducting wire to mediate the Coulomb interaction between ions in different traps, or between ions and superconducting qubits. To this end, a trapped charged particle inducing charge on a conductor has long been modeled as a system of equivalent lumped element electronic components. Careful consideration reveals two assumptions in the derivation of this model which are unjustified in many situations of interest. We identify these assumptions and explain their implications. In addition, we introduce an improved way to use linear relationships to describe the interaction of trapped ions with nearby conductors. The new method is based on realistic assumptions and reproduces results from other works that are not based on the circuit element model. It is targeted for trouble-shooting experimental designs and allows experiments to test and compare the accuracy of different theoretical models.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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英文摘要：

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