V2EX dephase

Dephase

定义 Definition

dephase(动词):使(两个或多个振动/信号/波)失去相位一致性,变得不同步;也可指系统由于噪声、传播差异等原因而逐渐失相(常见于物理、电子工程、光学与量子信息语境)。
注:相关名词常见为 dephasing(退相干/失相过程)。

发音 Pronunciation

/difez/

例句 Examples

The two signals dephase after a few seconds.
这两个信号在几秒后就会失相不同步。

Random noise can slowly dephase the oscillators, reducing the clarity of the measured interference pattern.
随机噪声会逐渐使振荡器失相,从而降低测得的干涉条纹清晰度。

词源 Etymology

由前缀 de-(表示“去除、相反”)+ phase(相位;阶段)构成,字面意思是“去相位”,引申为“使不再处于同一相位/不再同步”。该词多用于描述波、振动与信号的相位关系被破坏的过程。

相关词 Related Words

文学与著作 Literary Works

  • The Feynman Lectures on Physics(费曼《物理学讲义》;在讨论波、干涉与相干性时常见相关用语,如 dephase/dephasing
  • Optics by Eugene Hecht(Hecht《光学》;涉及干涉与相干时常出现“失相/去相干”的表述)
  • Principles of Lasers by Orazio Svelto(Svelto《激光原理》;讨论线宽、相干与相位扩散时常用 dephasing 等术语)
  • Quantum Computation and Quantum Information by Nielsen & Chuang(《量子计算与量子信息》;讨论退相干/相位噪声时常出现 dephasing 概念)
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