在中电子自旋的单次射击读数
Andrea Morello1, Jarryd J Pla, Floris A Zwanenburg
1Australian Research Council Centre of Excellence for Quantum Computer Technology, School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney, New South Wales 2052, Australia. a.morello@unsw.edu.au
Nature
|September 30, 2010
概括
研究人员实现了中电子自旋的高保真,一次性读取,这是开发基于自旋的量子计算机和使用技术的自旋电子设备的关键步骤.
科学领域:
- 量子计算是一种量子计算.
- 这就是Spintronics.
- 半导体物理 半导体物理
背景情况:
- 量子效应在缩小晶体管方面变得越来越重要,这给微处理器带来了挑战,但也使新的量子技术成为可能.
- 的电子旋转提供了量子比特的潜力,这是由于长的连贯时间和弱的旋转轨道合.
- 控制和观察中的单一旋转一直是量子设备开发的一个主要障碍.
研究的目的:
- 为了证明高保真度,在中单个电子旋转的单次射击读数.
- 在基于的系统中实现量子信息的操纵和控制.
- 为了为基于的量子计算和自旋电子设备铺平道路.
主要方法:
- 使用了一个带有植入捐赠者的设备,与一个金属氧化物半导体单电子晶体管相连.
- 采用时间分辨率测量用于一次性旋转读数.
- 在1.5特斯拉的磁场下运行该设备.
主要成果:
- 实现了超过90%的旋转读数保真度.
- 观察到的旋转寿命大约为6秒.
- 证明了在中成功的一次性,时间解析的电子自旋读数.
结论:
- 现在可以在中实现高保真单击旋转读取.
- 这一突破对于推进基于的量子计算和自旋电子学至关重要.
- 利用现有的微电子技术,为未来的量子设备制造提供动力.
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