利用射频传感器量子点快速感知双点电荷排布和自旋态
介观与纳米尺度物理
2010-04-27 v2
摘要
报道了双量子点电荷排布和自旋态的单次测量，测量时间低至约100纳秒。传感利用了库仑阻塞区近邻量子点的射频反射测量。传感器量子点的灵敏度比类似的量子点接触传感器高出多达30倍，并在射频单次测量中产生三倍的信噪比。数值建模与实验定性一致，并表明传感器量子点灵敏度的提高源于屏蔽和寿命展宽的减少。
引用
@article{arxiv.1001.3585,
title = {Fast sensing of double-dot charge arrangement and spin state with an rf sensor quantum dot},
author = {C. Barthel and M. Kjaergaard and J. Medford and M. Stopa and C. M. Marcus and M. P. Hanson and A. C. Gossard},
journal= {arXiv preprint arXiv:1001.3585},
year = {2010}
}
备注
related papers at http://marcuslab.harvard.edu