What is quantum physics?
Quantum physics is a branch of physics that deals with the behavior of matter and energy at the atomic and subatomic level. It is also known as quantum mechanics, and it describes the fundamental nature of particles that make up our universe, including atoms, electrons, photons, and other subatomic particles.

In classical physics, the behavior of matter and energy can be predicted with great accuracy, but this is not the case in the quantum world. In quantum mechanics, particles do not have a definite position or momentum until they are observed, and their behavior is described by a wave function that gives the probability of finding a particle at a particular location. This means that particles can exist in multiple states at the same time, and their behavior can be influenced by the act of observation.

Quantum physics has led to many important technological advancements, including the development of transistors, lasers, and superconductors. It has also led to a deeper understanding of the fundamental nature of our universe and has challenged our understanding of reality.