ELI5: Explain Like I'm 5

Coupling coefficient of resonators

Okay kiddo, do you know about resonators? They are like musical instruments that make sound when something vibrates inside them. Now, when you have two resonators close to each other, they can interact with each other like friends who play together.

The coupling coefficient is like a measure of how much these two resonators interact. It tells you how well they "talk" to each other and influence each other's vibrations. It's like when you talk to your friend and you listen carefully to each other, you can learn from each other and become even better friends.

Now, there are different ways that resonators can interact with each other. Sometimes they can help each other vibrate more strongly, and sometimes they can make each other quiet down. This depends on how they are designed and how close they are to each other.

Scientists use the coupling coefficient to understand how these resonators will interact and how well they will work together. It's like they want to make sure that their musical instruments play well together and make beautiful music. So, they use complicated calculations and experiments to figure out the coupling coefficient and make sure that the resonators are happy friends.