Okay kiddo, I will try my best to explain Pohlmeyer charge in a way that you can understand.
Imagine a bunch of ants walking on a sheet of paper. Each ant has a color but they all move around in a chaotic way. Now, if we focus on a particular group of ants that move together in a specific pattern, we can say that they have a "charge" or a special quality that sets them apart from the other ants.
Similarly, in the world of physics, we study different particles that make up everything around us. Some particles have a special quality, just like the group of ants, that we call a charge. Pohlmeyer charge is a specific type of charge that we observe in certain particles.
To understand Pohlmeyer charge, let's first talk about another type of charge called electric charge. You might have learned about this in school already. Electric charge is a property of particles that causes them to interact with each other through an electromagnetic force.
Now, Pohlmeyer charge is a bit more complicated. It relates to something called the geometry of space. Think of space like a piece of fabric that can stretch and bend. Some particles have a special quality that causes them to interact with this fabric, and we call that quality a Pohlmeyer charge.
This charge is important because it helps us understand how particles move and interact with each other in a unique way. It's like a secret code that helps us unlock the mysteries of the universe.
So, in summary, Pohlmeyer charge is a special quality that some particles have, which relates to the geometry of space. It helps us understand how particles move and interact with each other in a unique way, just like how a special group of ants can move together in a specific pattern.