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

被引：162
|
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
收藏
页码：1916 / 1920
页数：5
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