V2EX quantum gate

Quantum Gate

定义 Definition

量子门:量子计算中的基本操作单元,用来对一个或多个量子比特(qubit)的量子态进行可控的变换;数学上通常表示为幺正变换(unitary operation)。常见量子门包括 Hadamard 门、Pauli 门、CNOT 门等。

发音 Pronunciation (IPA)

/kwntm et/

例句 Examples

A quantum gate changes the state of a qubit.
量子门会改变量子比特的状态。

By combining quantum gates, researchers can build circuits that perform algorithms like Grover’s search or Shor’s factoring.
通过组合多个量子门,研究人员可以构建量子电路来运行 Grover 搜索或 Shor 因数分解等算法。

词源 Etymology

quantum 源自拉丁语 quantum(“多少、量”),在物理学中指“量子”(能量等物理量的最小离散单位)。gate 原意为“门、关口”,在电子学里引申为“逻辑门”。“quantum gate”借用了“门”作为“信息处理的基本开关/操作”的比喻,表示对量子信息进行的基本运算步骤。

相关词 Related Words

文学与著作 Literary Works

  • Michael A. Nielsen & Isaac L. Chuang, Quantum Computation and Quantum Information(经典教材,系统讲解量子门与量子电路)
  • Phillip Kaye, Raymond Laflamme & Michele Mosca, An Introduction to Quantum Computing(入门教材,包含量子门的基本概念与实例)
  • Eleanor Rieffel & Wolfgang Polak, Quantum Computing: A Gentle Introduction(较易读的介绍,常以量子门构建算法)
  • Richard P. Feynman, “Simulating Physics with Computers” (1982)(早期奠基性论文,推动以量子操作/门思想描述计算)
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