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arXiv 2106.07580quant-ph
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用于俘获离子应用的可扩展氦气冷却系统

A scalable helium gas cooling system for trapped-ion applications

Foni R. Lebrun-Gallagher, Nicholas Johnson, Mariam Akhtar, Sebastian Weidt, David Bretaud, Samuel J. Hile, Alexander Owens, Winfried K. Hensinger

摘要:

微加工离子阱器件为可扩展的量子计算提供了一条有前途的途径。研究工作已经开始集中在与开发大规模离子阱阵列和网络相关的工程挑战上。然而,增加阵列的尺寸和集成芯片上的电子器件会大大增加离子阱芯片内的功耗。这导致离子阱的工作温度升高,并限制了器件性能。因此,有效的热管理是任何大型架构的重要考虑因素。这里介绍的是一个模块化的冷却系统,设计用于多个离子捕获实验同时使用的发展。该系统包括一个可扩展的低温恒温器,允许缩放冷却功率以满足大型网络的需求。在对两个独立的离子阱实验进行实验测试后,冷却系统预计将在~70 K下为多达四个实验提供111 W的净冷却功率。该冷却系统是朝着应对操作具有许多量子位的大规模量子计算机的实际挑战迈出的一步。

英文摘要:

Microfabricated ion-trap devices offer a promising pathway towards scalable quantum computing. Research efforts have begun to focus on the engineering challenges associated with developing large-scale ion-trap arrays and networks. However, increasing the size of the array and integrating on-chip electronics can drastically increase the power dissipation within the ion-trap chips. This leads to an increase in the operating temperature of the ion-trap and limits the device performance. Therefore, effective thermal management is an essential consideration for any large-scale architecture. Presented here is the development of a modular cooling system designed for use with multiple ion-trapping experiments simultaneously. The system includes an extensible cryostat that permits scaling of the cooling power to meet the demands of a large network. Following experimental testing on two independent ion-trap experiments, the cooling system is expected to deliver a net cooling power of 111 W at ~70 K to up to four experiments. The cooling system is a step towards meeting the practical challenges of operating large-scale quantum computers with many qubits.

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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