Woit · §3.1 The two-state quantum system
英文原文
Woit identifies the paired eigenstates in this quantum-information context as the qubit system; this is a discussion mention, not a named definition.
原文相关讨论摘录
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
来源与版本
正文:英文原文
来源版本:2025-10-20
原文位置:§3.1;PDF 页 42;印刷页 25
处理记录:PDF 文字层提取;MinerU OCR;AI 辅助转录对照
核对状态:AI 辅助转录核对,未作人工审阅或数学审稿
来源 PDF SHA-256:5a1941b2443b54d5db3d055f1e5ba390429b7a728475258017aaac87ee85a837
中文译文
本段在量子信息语境中提到量子比特系统,属于讨论性提及,不是命名定义;译稿仍待审校。
译文摘录
特征值为 和 。在量子信息论中,这里对应的是量子比特系统,由于与经典信息比特的类比,这两个本征态被标记为 和 。当我们进入第 7 章的自旋理论时,我们将看到可观测量 对应(以一种非平凡的方式)于绕第三空间轴的旋转群 的作用,而该算符的特征值 将被用来标记这两个本征态,因此
来源与版本
正文:中文译文
来源版本:2025-10-20
原文位置:§3.1;PDF 页 42;印刷页 25
处理记录:machine-translation/deepseek-v4.1-flash
核对状态:译文尚未审核
Woit · §7.2 The spin 1/2 particle in a magnetic field
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英文 OCR 草稿
The source names the systems combined in a quantum computer as qubits.
机器草稿中的相关讨论摘录
• Quantum computing: attempts to build a quantum computer involve trying to put together multiple systems of this kind (qubits), keeping them isolated from perturbations by the environment, but still allowing interaction with the system in a way that preserves its quantum behavior.