Quantum theory of spectral-diffusion-induced electron spin decoherence

被引：133

作者：

Witzel, WM ^{[1
]}

de Sousa, R

Das Sarma, S

机构：

[1] Univ Maryland, Dept Phys, Condensed Matter Theory Ctr, College Pk, MD 20742 USA

[2] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Pitzer Ctr Theoret Chem, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.72.161306

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A quantum cluster expansion method is developed for the problem of localized electron spin decoherence due to dipolar fluctuations of lattice nuclear spins. At the lowest order it provides a microscopic explanation for the Lorentzian diffusion of Hahn echoes without resorting to any phenomenological Markovian assumption. Our numerical results show remarkable agreement with recent electron spin echo experiments in phosphorus doped silicon.

引用

页数：4

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