What is Quantum state?
The '''quantum state''' of something is a [[mathematic]]al tool that describes everything that can be physically measured about that thing. For example, the quantum state of a [[hydrogen]] [[atom]], has all the physical information one can get from measuring a hydrogen atom, like its position, [[momentum]], [[energy]], [[angular momentum]], [[spin (physics)|spin]], and so forth. == Related pages == *[[Quantum mechanics]] [[Category:Quantum mechanics]] {{Physics-stub}}