Feedback control of spin systems

被引：34

作者：

Altafini, Claudio ^{[1
]}

机构：

[1] SISSA, ISAS, I-34014 Trieste, Italy

来源：

QUANTUM INFORMATION PROCESSING | 2007年 / 6卷 / 01期

关键词：

quantum control; spin systems; feedback stabilization; spin decoupling;

D O I：

10.1007/s11128-006-0038-x

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The feedback stabilization problem for ensembles of coupled spin 1/2 systems is discussed from a control theoretic perspective. The noninvasive nature of the bulk measurement allows in principle for a fully unitary and deterministic closed loop. The Lyapunov-based feedback design presented does not require spins that are selectively addressable. With this method, it is possible to obtain control inputs also for difficult tasks, like suppressing undesired couplings in identical spin systems.

引用

页码：9 / 36

页数：28

共 31 条

[1] Chaotic solutions of the feedback driven Bloch equations [J].