Time resolved control of electron tunnelling times and single-shot spin readout in a quantum dot

被引：0
|
作者：
Gaudreau, L. [1 ,2 ]
Kam, A. [1 ]
Kycia, J. B. [3 ]
Studenikin, S. A. [1 ]
Granger, G. [1 ]
Mason, J. D. [3 ]
Zawadzki, P. [1 ]
Sachrajda, A. S. [1 ]
机构：
[1] CNR, Inst Microstruct Sci, Ottawa, ON K1A 0R6, Canada
[2] Univ Sherbrooke, Dept Phys, Sherbrooke, PQ J1K 2R1, Canada
[3] Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2010年 / 42卷 / 04期
关键词：
Quantum dot; Charge detection; Full counting statistics; Spin relaxation time;
D O I：
10.1016/j.physe.2009.11.143
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We are pursuing a capability to perform time resolved manipulations of single spins in quantum dot circuits involving more than two quantum dots. In this paper, we demonstrate full counting statistics as well as averaging techniques used to calibrate the tunnel barriers. We make use of this to implement the Delft protocol [1] for single shot single spin readout in a device designed to form a triple quantum dot potential. We are able to tune the tunnelling times over around three orders of magnitude. We obtain a spin relaxation time of 300 mu s at 10T. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：817 / 820
页数：4
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