definition of quantum short explanation short answers

Answer 1

Quantum refers to the branch of physics that deals with the behavior of matter and energy at a very small scale, such as atoms and subatomic particles. Quantum theory explains how particles can exist in multiple states at the same time and how they can be connected or entangled with each other across great distances. Quantum mechanics is the foundation of modern physics and has led to advancements in technologies such as computers, lasers, and medical imaging.