What is Quantum Physics?
Quantum mechanics is a fundamental theory in physics that provides a description of the physical properties of nature at the scale of atoms and subatomic particles. It is the foundation of all quantum physics including quantum chemistry, quantum field theory, quantum technology, and quantum information science.
With Greater Speed, Comes Heavier Responsibility
Einstein's monumental formula: E=mc2, states that the faster you move, the heavier you weigh. An object travelling at the speed of light is literally immovable. However, that's not possible since it will break the laws of physics as we know it. The only reason why light is the only object permitted to such velocities is because of its zero mass.
Everything is a Ghost in this Small World
An effect called "quantum tunneling" is a quantum mechanical phenomenon whereby a wavefunction can propagate through a potential barrier. The transmission through the barrier can be finite and depends exponentially on the barrier height and barrier width. In essence, it is literally the natural ability of particles to go straight through barriers just like how ghosts do. Scary!
Spooky Action at a Distance
Quantum entanglement suggests that tiny particles interact with each other at a rate faster than the speed of light, such that they are cannot be described independently of each other. Albert Einstein thought this was very strange and referred to it as “spooky action at a distance.”