V2EX fluxoid

Fluxoid

定义 Definition

fluxoid(磁通量子/磁通子):超导物理中的概念,指在超导环或超导体中“磁通 + 超电流贡献”组成的一个量,其总值满足量子化条件(以磁通量子为单位取离散值)。常用于描述超导环中被“锁定”的量子化磁通状态。

发音 Pronunciation (IPA)

/flksd/

例句 Examples

A fluxoid can be trapped in a superconducting ring.
磁通子可以被困在一个超导环中。

When the ring is cooled below its critical temperature, the fluxoid becomes quantized, so the system can only occupy discrete magnetic states.
当环被冷却到临界温度以下时,磁通子会发生量子化,因此系统只能处于离散的磁状态。

词源 Etymology

fluxoidflux(“磁通/流量”)加上后缀 -oid(“类似……的、……状的”)构成,字面意思是“类似磁通的量”。在超导理论中,它并不完全等同于单纯的磁通(magnetic flux),而是把超电流的相位与环流效应一并纳入,因此更适合描述超导回路中的量子化约束。

相关词 Related Words

文学与经典著作中的用例 Literary Works

  • Michael Tinkham, Introduction to Superconductivity(教材中讨论磁通子量子化与超导环)
  • P. G. de Gennes, Superconductivity of Metals and Alloys(涉及超导相位、涡旋与量子化量的表述)
  • Fritz London, Superfluids, Vol. I: Macroscopic Theory of Superconductivity(宏观超导理论语境中与“fluxoid quantization”相关的经典来源之一)
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