Electron spin decoherence due to hyperfine coupling in quantum dots

被引：0
|
作者：
Woods, LM [1 ]
Reinecke, TL [1 ]
机构：
[1] Univ S Florida, Dept Phys, Tampa, FL 33620 USA
来源：
PHYSICS OF SEMICONDUCTORS, PTS A AND B | 2005年 / 772卷
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D O I：
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中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The decoherence of an electron spin due to the hyperfine interaction in a realistic quantum dot with a large number of nuclei and with varying degrees of initial nuclear polarization is obtained. A nonperturbative method for calculating the spin decay time is given. The spin decay is described by the powers of a single function I(t) that arises from the inhomogeneity of the hyperfine coupling in the quantum dot. The behavior of an ensemble of dots is decidedly different from that of a single dot.
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页码：1343 / 1344
页数：2
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