Nondestructive optical measurements of a single electron spin in a quantum dot

被引：168

作者：

Berezovsky, J. ^{[1
]}

Mikkelsen, M. H. ^{[1
]}

Gywat, O. ^{[1
]}

Stoltz, N. G. ^{[1
]}

Coldren, L. A. ^{[1
]}

Awschalom, D. D. ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Ctr Spintron & Quantum Computat, Santa Barbara, CA 93106 USA

来源：

SCIENCE | 2006年 / 314卷 / 5807期

关键词：

D O I：

10.1126/science.1133862

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Kerr rotation measurements on a single electron spin confined in a charge-tunable semiconductor quantum dot demonstrate a means to directly probe the spin off-resonance, thus minimally disturbing the system. Energy-resolved magneto-optical spectra reveal information about the optically oriented spin polarization and the transverse spin lifetime of the electron as a function of the charging of the dot. These results represent progress toward the manipulation and coupling of single spins and photons for quantum information processing.

引用

页码：1916 / 1920

页数：5

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