光量子能量E=hν成立，有频率的下限吗？

doi:10.17605/OSF.IO/7C5FK

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光量子能量 E=hν 的精确成立，有频率的下限吗？在1920年前后，人类开始利用电磁波进行商业化的调幅广播业务。它是通过“控制载波的振幅”来工作的。这意味着：兆赫兹范围的电磁波的振幅，不是固定的数值。可以“按照调制信号的规律”进行大小的变化。将低频电磁波，分解成怎样的光子呢？请专家老师们给讲解一下。感谢！参考资料： [1] 2022-01-20，调幅广播/amplitude modulation radio/史萍，中国大百科全书，第三版网络版[DB/OL] https://www.zgbk.com/ecph/words?SiteID=1&ID=109698&Type=bkzyb&SubID=81259 以幅度调制方式对音频信号进行无线电传输的模拟声音广播形式。幅度调制是将要传送的信号作为调制信号控制载波的振幅，使其按照调制信号的规律变化。 [2] 2023-08-01，光子/photon/裴寿镛，吴令安，中国大百科全书，第三版网络版[DB/OL] https://www.zgbk.com/ecph/words?SiteID=1&ID=215506&Type=bkzyb&SubID=146659 电磁场的量子，是自旋为h、静止质量为零的中性玻色子，还是传递电磁相互作用的媒介粒子，在真空中以光速运动。又称光量子。

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