What are particle pairs?

Particle pairs are when two tiny things pop into existence together from nowhere, just like a surprise gift for two friends at once!

Imagine you're playing with your favorite building blocks. Sometimes, when you shake the box really hard, two new blocks jump out, even though there were only so many inside before. That’s kind of what happens with particle pairs.

Think about a cookie jar. When you take one cookie out, sometimes another one appears, like it was waiting for the first one to come out! In the world of tiny things, particle pairs are just like that: when one particle shows up, another one shows up too, right next to it.

Sometimes these particles are hiding in a special place called empty space, but they're not really empty, they’re just waiting for someone (or something) to shake things up. When you do that, like turning on a light or hitting the box hard enough, poof, two new tiny friends pop into being!

They might be best friends forever, or maybe they’ll go their separate ways after a while, but they always start together!