Alexander Markovich Polyakov is a really smart person who studies things called "quantum field theory" and "string theory" which are ways of understanding how things work on a very small scale, like atoms and particles that are too tiny for us to see with our eyes. Imagine you have a bunch of Legos and you want to build something really cool. You can use the Lego bricks to build lots of different things, like houses, cars, or airplanes. In a similar way, Alexander Markovich Polyakov uses mathematical tools to build models that help us understand the mechanics of our universe. He has won lots of awards for his work because he helps other scientists learn more about how to make our world a better place.