Rego Luis G C, Santos Lea F, Batista Victor S
Departamento de Física, Universidade Federal de Santa Catarina, Florianópolis, SC 88040-900 Brazil.
Annu Rev Phys Chem. 2009;60:293-320. doi: 10.1146/annurev.physchem.040808.090409.
Coherent-optical-control schemes exploit the coherence of laser pulses to change the phases of interfering dynamical pathways and manipulate dynamical processes. These active control methods are closely related to dynamical decoupling techniques, popularized in the field of quantum information. Inspired by nuclear magnetic resonance spectroscopy, dynamical decoupling methods apply sequences of unitary operations to modify the interference phenomena responsible for the system dynamics thus also belonging to the general class of coherent-control techniques. This article reviews related developments in the fields of coherent optical control and dynamical decoupling, emphasizing the control of tunneling and decoherence in general model systems. Considering recent experimental breakthroughs in the demonstration of active control of a variety of systems, we anticipate that the reviewed coherent-control scenarios and dynamical-decoupling methods should raise significant experimental interest.
相干光控制方案利用激光脉冲的相干性来改变干涉动力学路径的相位并操纵动力学过程。这些主动控制方法与量子信息领域中流行的动力学解耦技术密切相关。受核磁共振光谱学的启发，动力学解耦方法应用酉操作序列来修改负责系统动力学的干涉现象，因此也属于相干控制技术的一般类别。本文回顾了相干光控制和动力学解耦领域的相关进展，重点强调了一般模型系统中的隧穿和退相干控制。考虑到最近在各种系统的主动控制演示方面的实验突破，我们预计所综述的相干控制方案和动力学解耦方法将引起重大的实验兴趣。
