别名:complete
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。
Szekeres · source-snapshot-bc3404156f6e
已登记出处中的最早位置:§14.1 · zh-CN。
来源短摘录与定位
§14.1 · zh-CN · translation · unreviewed
在经典力学中,物理可观测量(observable)指的是位置、动量、能量或角动量等量,它们是实数或实多分量对象。在量子力学中,可观测量由态希尔伯特空间上的自伴算符表示。我们首先考虑是厄米算符(有界且连续)的情形。若相应的厄米算符是完备的,使得存在由特征向量构成的正交标准基,则称这样的可观测量为完备可观测量(complete observable)。使得
§14.1 · en · original_transcription · unreviewed
In classical mechanics,physical observables refer to quantities such as position, momentum, energy or angular momentum, which are real numbers or real multicomponented objects. In quantum mechanics observables are represented by self-adjoint operators on the Hilbert space of states. We first consider the case where is a hermitian operator (bounded and continuous). Such an observable is said to be complete if the corresponding hermitian operator is complete, so that there is an orthonormal basis made up of eigenvectors . such that