V2EX coherent control

Coherent Control

Definition / 定义

“Coherent control”常译为相干控制,指利用相干的外场(多为激光脉冲、微波等)来操控量子系统(如原子、分子、量子比特)的演化与结果。核心思想是借助相位关系与量子干涉,有选择地增强或抑制某些跃迁、反应通道或最终产物分布。(在量子光学、化学动力学与量子信息中很常见。)

Pronunciation / 发音

/kohrnt kntrol/

Examples / 例句

Coherent control can steer a molecule toward a desired reaction product.
相干控制可以把分子反应“引导”到想要的产物上。

By shaping the phase and timing of ultrafast laser pulses, researchers achieved coherent control of competing pathways, selectively boosting one transition while suppressing another.
研究人员通过整形超快激光脉冲的相位与时序,实现了对竞争路径的相干控制:选择性增强一种跃迁,同时抑制另一种。

Etymology / 词源

coherent来自拉丁语 cohaerēre(“黏在一起、连贯一致”),在物理语境里引申为“具有固定相位关系的(相干的)”;control来自古法语 ,原意与“核对、校验”有关,后发展为“支配、调控”。合起来,“coherent control”强调用“相干性(相位一致性)”作为手段来实现“控制”。

Related Words / 相关词

Literary Works / 文学作品

(该术语主要出现在科学与学术著作中,而非传统小说文学。以下为该领域常被引用的代表性著作:)

  • Quantum Control of Molecular Processes(Moshe Shapiro & Paul Brumer)
  • Coherent Control of Atomic and Molecular Processes(Paul Brumer & Moshe Shapiro)
  • Principles and Applications of Quantum Control Engineering(相关领域教材与专著中常用该术语)
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