按作者与版本查阅
以下按已登记位置排列。出现顺序、原文引用与已登记依赖分别展示;最早位置不代表全书首次定义。
Woit · 2025-10-20
已登记出处中的最早位置:§3.1 · en。
来源短摘录与定位
§3.1 · en · original_transcription · ai-transcription-compared
with eigenvalues and . In quantum information theory, where this is the qubit system, these two eigenstates are labeled and because of the analogy with a classical bit of information. When we get to the theory of spin in chapter 7, we will see that the observable corresponds (in a non-trivial way) to the action of the group of rotations about the third spatial axis, and the eigenvalues of this operator will be used to label the two eigenstates, so
§3.1 · zh-CN · translation · unreviewed
特征值为 和 。在量子信息论(quantum information theory)中,这里讨论的正是量子比特(qubit)系统;与经典信息比特相类比,这两个本征态分别记作 和 。当我们在第 7 章讨论自旋时,会看到可观测量 以一种非平凡的方式对应于绕第三空间轴旋转的群 的作用。该算符的特征值 和 将用来标记这两个本征态,因此:
§3.4 · zh-CN · translation · unreviewed
许多量子力学教科书如今从二态系统讲起,对它的处理比本书此处详细得多,也更充分地讨论其物理解释(例如[97])。费曼《物理学讲义》第三卷 [25] 是一本量子力学教材,前半部的大部分篇幅都用于讨论二态系统。量子信息论(Quantum Information Theory)从另一视角研究量子理论,并将这类系统置于核心位置;在这一语境中,它们称为“量子比特(qubit)”。John Preskill 的量子计算讲义 [69] 是这方面的一种参考资料。
§3.4 · en · original_transcription · ai-transcription-compared
Many quantum mechanics textbooks now begin with the two-state system, treating it in much more detail than we do here and discussing its physical interpretation at greater length (for example, [97]). Volume III of Feynman’s Lectures on Physics [25] is a quantum mechanics text, with much of its first half devoted to two-state systems. The field of Quantum Information Theory offers a perspective on quantum theory that puts such systems, called “qubit” in this context, front and center. One possible reference for this material is John Preskill’s notes on quantum computation [69].
原文中已定位的引用(不自动视为依赖)
- [chapter 7](../chapter-07/index#section-7)
- [第 7 章](../chapter-07/index#section-7)
- [二态系统](01-the-two-state-quantum-system#section-3-1)
- [<u class=“concept-term” data-concept-reference=“concept-3-quantum-information-theory” data-concept-identity=“urn:uuid:794a1dd4-a2a7-4f6d-9697-5fa32e00a8b4” data-concept-route=“/concept-identities#concept-794a1dd4-a2a7-4f6d-9697-5fa32e00a8b4”>量子信息论(Quantum Information Theory)</u>](01-the-two-state-quantum-system#concept-3-quantum-information-theory)
- [<u class=“concept-term” data-concept-reference=“concept-3-qubit” data-concept-identity=“urn:uuid:60143061-9c32-4555-8fdc-847e68ce8f16” data-concept-route=“/concept-identities#concept-60143061-9c32-4555-8fdc-847e68ce8f16”>量子比特(qubit)</u>](01-the-two-state-quantum-system#source-block-3020)
- [two-state system](01-the-two-state-quantum-system#section-3-1)
- [<u class=“concept-term” data-concept-reference=“concept-3-quantum-information-theory” data-concept-identity=“urn:uuid:794a1dd4-a2a7-4f6d-9697-5fa32e00a8b4” data-concept-route=“/concept-identities#concept-794a1dd4-a2a7-4f6d-9697-5fa32e00a8b4”>Quantum Information Theory</u>](01-the-two-state-quantum-system#concept-3-quantum-information-theory)
- [<u class=“concept-term” data-concept-reference=“concept-3-qubit” data-concept-identity=“urn:uuid:60143061-9c32-4555-8fdc-847e68ce8f16” data-concept-route=“/concept-identities#concept-60143061-9c32-4555-8fdc-847e68ce8f16” id=“first-87c83517ffc7a6e93810-en”>qubit</u>](01-the-two-state-quantum-system#source-block-3020)