Decoherence of Rabi oscillations of electronic spin states in a double quantum dot

被引：5
|
作者：
Romito, Alessandro [1 ]
Gefen, Yuval [1 ]
机构：
[1] Weizmann Inst Sci, Dept Condensed Matter Phys, IL-76100 Rehovot, Israel
来源：
PHYSICAL REVIEW B | 2007年 / 76卷 / 19期
关键词：
D O I：
10.1103/PhysRevB.76.195318
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study the role of charge fluctuations in the decoherence of Rabi oscillations between spin states parallel to up arrow down arrow >, parallel to down arrow up arrow > of two electrons in a double dot structure. We consider the effects of fluctuations in energy and in the quantum state of the system, both in the classical and quantum limits. The role of state fluctuations is shown to be of leading order at sufficiently high temperature, applicable to actual experiments. At low temperature, the low frequency energy fluctuations are the only dominant contribution.
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页数：5
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