Coulomb Blockade Fluctuations in Strongly Coupled Quantum Dots
Coulomb Blockade Fluctuations in Strongly Coupled Quantum Dots
复制标题
强耦合量子点中的库仑阻塞涨落
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
Jr.
中科院分区：
文献类型：
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作者：
S. Maurer;S. Patel;C. Marcus;C. Duruoz;J. Harris;Jr.
研究了库仑阻塞的量子涨落与半导体量子点中的储层耦合的关系。我们使用波动的峰之间的距离DN除了表征峰运动的幅度和相关性。对于强耦合，峰运动在低温下大大增强，但没有显示出预期的峰-峰相关性的增加。这些效应可能导致库仑谷中的异常温度依赖性，类似于归因于近藤物理的行为。
Quantum fluctuations of the Coulomb blockade are investigated as a function of the coupling to reservoirs in semiconductor quantum dots. We use fluctuations in the distance between peaks DN apart to characterize both the amplitude and correlation of peak motion. For strong coupling, the peak motion is greatly enhanced at low temperature, but does not show the expected increase in peak-topeak correlation. These effects can lead to anomalous temperature dependence in the Coulomb valleys, similar to the behavior ascribed to Kondo physics.