V2EX spin chain

Spin Chain

定义 Definition

spin chain(自旋链):凝聚态物理与量子信息中常见的模型,指一维排列的一串“自旋”(可理解为微观磁矩或量子比特),相邻(或一定范围内)自旋之间通过相互作用耦合,用来研究磁性、量子相变、纠缠与量子传输等现象。(在不同语境下也可指具体的“自旋链模型”,如 Ising 链、Heisenberg 链等。)

发音 Pronunciation (IPA)

/spn ten/

例句 Examples

A spin chain can model a line of interacting quantum bits.
自旋链可以用来模拟一列相互作用的量子比特。

The Heisenberg spin chain exhibits rich quantum phases and is widely used to study entanglement and transport in low-dimensional materials.
海森堡自旋链呈现出丰富的量子相,并被广泛用于研究低维材料中的纠缠与输运性质。

词源 Etymology

spin 原意为“旋转”,在量子力学中借用来指代粒子的内禀角动量(自旋),虽然它不等同于经典意义上的“真的在转”。chain 意为“链条”,引申为“一串相连的元素”。合起来 spin chain 就是“由许多自旋按一维链状连接并发生相互作用的系统”。

相关词 Related Words

文学与著作举例 Literary Works

  • Quantum Theory of Magnetism(Robert M. White):讨论低维磁性体系时常涉及自旋链模型。
  • Quantum Physics in One Dimension(Thierry Giamarchi):以一维量子体系为主线,包含自旋链与相关低能有效理论。
  • Statistical Mechanics(R. K. Pathria, Paul D. Beale):在讲解格点模型与相变思想时会提到一维自旋模型/自旋链的经典例子。
  • Quantum Computation and Quantum Information(Michael A. Nielsen, Isaac L. Chuang):在量子信息相关背景中,自旋链常作为量子态传输与量子模拟的典型物理平台被提及。
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