Recall the Uncertainty Principle

The uncertainty principle states that you cannot know both the position x and the momentum p of a particle more precisely than Planck’s constant h/2“h-bar”
When dimensions are small, particles must therefore move in order to satisfy the uncertainty principle
This motion creates a “zero point energy” > 0

The uncertainty principle states that you cannot know both the position x and the momentum p of a particle more precisely than Planck’s constant h/2“h-bar”