Sample interview questions: Can you explain the concept of compactification and how it relates to string theory?
Sample answer:
Compactification in String Theory
Compactification is a fundamental concept in string theory that describes the process of reducing the dimensionality of spacetime from ten dimensions to the four dimensions we observe in our universe.
In string theory, the fundamental building blocks of reality are not point-like particles, but one-dimensional objects called strings. These strings can vibrate in various modes, giving rise to different types of particles.
The ten-dimensional spacetime in string theory is not directly observable. Instead, it is believed that six of the dimensions are “compactified” or “hidden” from our view. This compactification occurs at a very small scale, far below the resolution of any current experimental technique.
There are various ways to compactify extra dimension… Read full answer