不能用傳輸時間測量嗎?
回答: 群速在量子力學/光學裏是單個粒子(光子)被觀察到的概率振幅(概率的複平方根)波包中心的速度,同樣是不可觀測量。誰看到過概率?
由 chezclement
於 2018-11-07 10:15:27
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