On a base level, consciousness is the fact of being awake and processing information. Doctors judge people conscious or not depending on their wakefulness and how they respond to external stimuli. But being conscious is also a neurological phenomenon, and it is part of what allows us to exist and understand ourselves in the world.
- Quantum Physics
Quantum physics is a fundamental theory in physics which describes nature at the smallest scales of energy levels of atoms and subatomic particles. The word quantum derives from the Latin meaning “how great” or “how much”. In quantum physics, it refers to a discrete unit assigned to certain physical quantities such as energy of an atom at rest.