Multiple nuclear polarization States in a double quantum dot.
Multiple nuclear polarization States in a double quantum dot.
复制标题
双量子点中的多个核极化态。
DOI：
10.1103/physrevlett.103.046601
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发表时间：
2009
影响因子：
8.6
通讯作者：
Y. Nazarov
中科院分区：
文献类型：
--
作者：
J. Danon;I. T. Vink;F. Koppens;K. Nowack;L. Vandersypen;Y. Nazarov
在电子自旋共振条件下，我们在双量子点中观察到了核极化和核自调谐的多个稳定态。在强驱动的极限下，可以在每个点的极化的详细理论速率方程模型中理解这些观察结果。该模型还捕获了数据的不寻常特征，例如快速切换和偏振的“错误”符号。报告的结果使这种极化效应的应用，包括准确的操纵和控制的核领域。
We observe multiple stable states of nuclear polarization and nuclear self-tuning over a large range of fields in a double quantum dot under conditions of electron spin resonance. The observations can be understood within an elaborated theoretical rate equation model for the polarization in each of the dots, in the limit of strong driving. This model also captures unusual features of the data, such as fast switching and a "wrong" sign of polarization. The results reported enable applications of this polarization effect, including accurate manipulation and control of nuclear fields.