Coherent control of cavity quantum electrodynamics for quantum nondemolition measurements and ultrafast cooling

被引：23

作者：

Liu, RB ^{[1
]}

Yao, W ^{[1
]}

Sham, LJ ^{[1
]}

机构：

[1] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.72.081306

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Quantum nondemolition measurements and ultrafast cooling of single spins are critical for scalable quantum computation. For such purposes, quantum evolution in a coupled structure of a nanodot, a microcavity, and a waveguide can be coherently controlled to establish efficient quantum pathways connecting in sequence an electron spin, a charged exciton, a cavity photon, and finally a flying photon in the waveguide. As an example of suppressing unwanted dynamics in complex solid-state systems, pulse shaping is employed to switch the nanodot-cavity coupling on demand and to perform robust quantum operation.

引用

页数：4

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