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词汇 Spacial quantization
分类 英语词汇 英语翻译词典
释义

Spacial quantization

中文百科

角动量算符 Angular momentum operator

（重定向自Spacial quantization）

在量子力学里，角动量算符（英语：angular momentum operator）是一种算符，模拟于经典的角动量。在原子物理学涉及旋转对称性（rotational symmetry）的理论里，角动量算符占有中心的角色。角动量，动量，与能量是物体运动的三个基本特性。

英语百科

Angular momentum operator 角动量算符

（重定向自Spacial quantization）
In this standing wave on a circular string, the circle is broken into exactly 8 wavelengths. A standing wave like this can have 0,1,2, or any integer number of wavelengths around the circle, but it cannot have a non-integer number of wavelengths like 8.3. In quantum mechanics, angular momentum is quantized for a similar reason.
Illustration of the vector model of orbital angular momentum.
The different types of rotation operators. Top: Two particles, with spin states indicated schematically by the arrows. (A) The operator R, related to J, rotates the entire system. (B) The operator Rspatial, related to L, rotates the particle positions without altering their internal spin states. (C) The operator Rinternal, related to S, rotates the particles' internal spin states without changing their positions.

In quantum mechanics, the angular momentum operator is one of several related operators analogous to classical angular momentum. The angular momentum operator plays a central role in the theory of atomic physics and other quantum problems involving rotational symmetry. In both classical and quantum mechanical systems, angular momentum (together with linear momentum and energy) is one of the three fundamental properties of motion.
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