在商业CMOS工艺中,静电定义量子点的常态控制和封闭反转
Andrii Sokolov1, Xutong Wu2,3, Conor Power2,3
1Equal1 Laboratories, D04 V2N9, Dublin, Ireland. andrii.sokolov@equal1.com.
Scientific reports
|November 23, 2025
概括
研究人员使用在绝缘体上的CMOS技术演示了可扩展的量子点量子比特. 这种方法允许控制量子点的形成和能量水平调整,这对于推进量子比特架构至关重要.
科学领域:
- 半导体物理 半导体物理
- 量子计算是一种量子计算.
背景情况:
- 可扩展的量子位架构对于推动量子计算的发展至关重要.
- 在绝缘体 (SOI) CMOS技术为制造量子设备提供了一个有前途的平台.
- 限制在半导体通道中的量子点 (QD) 是量子比特实现的主要候选者.
研究的目的:
- 介绍一个商业纳米结构的校准模型,用于量子点形成.
- 通过实验验证开发的模拟模型的预测.
- 为了证明用于可扩展量子比特应用的SOI CMOS设备中控制和调整量子点的可行性.
主要方法:
- 利用QTCAD®模拟工具进行商业纳米结构建模.
- 使用常态源流电压和后门电压的组合,形成量子点.
- 多种障碍门电压,以实现量子点能量水平的有效解调.
- 对所有模型预测进行实验验证.
主要成果:
- 在行业标准完全耗尽的SOI CMOS结构的道中成功形成了量子点.
- 证明了对量子点的数量和修改的精确控制.
- 通过调整屏障门电压,实现了量子点内的能量水平的有效调节.
- 通过实验结果验证了所有模型预测.
结论:
- 开发的QTCAD®模型准确地模拟了商业SOI CMOS设备中的量子点形成.
- 这种方法可以控制量子点的制造和调整,这对于可扩展的量子比特架构至关重要.
- 在制造前模拟和优化量子点设备设计是可行的,加速了量子计算硬件的发展.
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