Fano resonance

Okay kiddo, let’s talk about something called Fano Resonance.

Do you know what a resonance is? It’s when something starts to vibrate really strongly at a certain frequency. Sort of like when you push someone on a swing, and after a few pushes the swing starts going really high. That’s because you’re pushing it at the right frequency for it to swing higher and higher.

Now, Fano resonance happens when two different things are trying to vibrate at the same time but one of them is getting in the way of the other. It’s like when you try to play with a toy but your little brother keeps getting in the way and won’t let you play with it.

The thing that’s getting in the way is called an “interfering wave”. This wave sort of messes up the other wave’s rhythm and causes it to vibrate in a weird way. It’s like if you were singing a song and someone joined in but they were singing it all wrong, then you would start singing differently too.

Scientists have found that this phenomenon happens a lot in tiny particles, like atoms or molecules, and it can change how the particles behave. They use something called a “Fano factor” to measure how strong the interference is.

So, in summary, Fano resonance happens when two things are trying to vibrate at the same time but one of them is getting in the way and messing up the other’s rhythm. This can change how tiny particles behave and is measured with a Fano factor.