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可扩展的原子阵列用于基于的自旋量子计算机

Alexander M Jakob^1,2, Simon G Robson^1,2, Hannes R Firgau^2,3

¹School of Physics, University of Melbourne, Parkville, VIC, 3010, Australia.

Advanced materials (Deerfield Beach, Fla.)

|August 29, 2024

概括

使用制造可扩展的量子计算机是通过新的捐赠者自旋量子比特策略来推进的. 这些方法提高了植入器的精度,并使密集,规则的数组能够进行量子信息处理.

科学领域:

量子计算是一种量子计算.
半导体物理半导体物理
材料科学是一种材料科学.

背景情况:

半导体自旋量子比特提供高量子性能和可制造性,使用已建立的金属氧化物半导体 (MOS) 工艺.
离子植入的供体旋转为量子信息处理提供了很长的连贯时间和很大的希尔伯特空间维度.

研究的目的:

展示和整合用于制造可扩展的基于的供体量子计算机的战略.
为了提高捐赠者自旋量子位的放置和排列的精度和控制.

主要方法:

使用31PF2分子植入物来提高放置确定性和检测可靠性.
采用比较重的原子,如123Sb和209Bi用于高维量子,以及Sb2分子用于确定性量子形成.
实现通过纳米孔进行步骤和重复植入,以确定 300 nm 间隔的正规捐赠原子阵列的确定性形成.

主要成果:

在使用31PF2分子植入物检测植入物时获得了99.99%的可靠性,在31P离子上增加了三倍的放置确定性.
证明了使用123Sb和209Bi作为高维量子和Sb2分子用于紧密间隔的量子形成.
通过使用纳米孔径植入成功创建了300纳米间距的供体原子正规阵列.

结论:

开发的战略解决了构建基于的量子计算机的关键技术要求.
这些进步为使用精确控制的捐赠者自旋量子比特铺平了可扩展量子计算的道路.

关键词:

确定性的单离子植入.捐赠者自旋量子比特和量子比特.电子设备工程电子设备工程可扩展的原子数组.量子计算中的量子计算.

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