HELLO

My name is Leo Garcia.

Quantum superposition is a fundamental principle of quantum mechanics. In classical mechanics, things like position or momentum are always well-defined. We may not know what they are at any given time, but that is an issue of our understanding and not the physical system. In quantum mechanics, a particle can be in a superposition of different states. It can be in two places at once (see double-slit experiment). A measurement always finds it in one state, but before and after the measurement, it interacts in ways that can only be explained by having a superposition of different states.