概率幅，在量子力学里又称为量子幅，是一个描述粒子的量子行为的复函数。例如，概率幅可以描述粒子的位置。当描述粒子的位置时，概率幅是一个波函数，表达为位置的函数。该波函数必须满足薛定谔方程。
双语例句原声例句
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如果让A或者B发生时，那么概率幅是alpha加上beta。
For A or B to happen, the probability amplitude is alpha plus beta.
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例如，两个量子事件a和b，描述为所谓的概率幅，分别为alpha和beta。
For example, two quantum events, a and b, are described by so-called probability amplitudes, alpha and beta.
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为了计算A发生的可能性，你必须对概率幅alpha进行平方运算。 同样的也要对B进行类似计算。
To calculate the probability of A happening, you must square this amplitude alpha and likewise to work out the probability of B happening.
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So, the example that we took on Monday and that we ended with when we ended class, was looking at the 1 s orbital for hydrogen atom, and what we could do is we could graph the radial probability as a function of radius here.
周一我们,最后讲到了，粒子是氢原子１ｓ轨道，我们可以画出,这幅径向概率分布曲线。
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