https://blog.wongcw.com/2021/06/10/c12-quantum-electronics%e5%ae%8c%e6%88%901000%e8%90%ac%e7%be%8e%e5%85%83%e7%a8%ae%e5%ad%90%e8%bc%aa%e8%9e%8d%e8%b3%87%e5%8a%a0%e9%80%9f%e9%87%8f%e5%ad%90%e6%8a%80%e8%a1%93%e7%99%bc%e5%b1%95/