Non-Gaussian distribution of Coulomb blockade peak heights in quantum dots.
Non-Gaussian distribution of Coulomb blockade peak heights in quantum dots.
复制标题
量子点中库仑阻塞峰高度的非高斯分布。
DOI：
10.1103/physrevlett.76.1695
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发表时间：
1996
影响因子：
8.6
通讯作者：
T. Y. Chang
中科院分区：
文献类型：
--
作者：
Albert M. Chang;H. Baranger;L. Pfeiffer;K. West;T. Y. Chang
我们已经观察到一个强烈的非高斯分布的库仑阻塞电导峰高隧穿通过量子点。在零磁场下，低电导尖峰占主导地位的分布，在非零场的分布是明显不同的，仍然是非高斯的。所观察到的分布是一致的理论预测的基础上，单级隧道和“量子混沌”的概念，在一个封闭的系统弱耦合到铅。
We have observed a strongly non-Gaussian distribution of Coulomb blockade conductance peak heights for tunneling through quantum dots. At zero magnetic field, a low-conductance spike dominates the distribution; the distribution at nonzero field is distinctly different and still non-Gaussian. The observed distributions are consistent with theoretical predictions based on single-level tunneling and the concept of “quantum chaos” in a closed system weakly coupled to leads.