The wave function describes the probability distribution of a particle's position and momentum from "summary" of The Fabric of the Cosmos by Brian Greene
The wave function encapsulates the complete information about a particle's behavior. It's a mathematical construct that describes all the possible outcomes for a particle's position and momentum. This information is not fixed or determined but is instead characterized by probabilities. These probabilities represent the likelihood of a particle being in a particular position or possessing a certain momentum at any given time. The wave function is not a tangible entity but a representation of the uncertainty inherent in quantum mechanics. When we observe a particle, its wave function collapses, and we can determine its position or momentum with certainty. However, before measurement, the particle exists in a state of superposition, where it occupies multiple positions and momenta simultaneously. This superposition is a fundamental aspect of quantum mechanics and is what gives rise to the probabilistic natu...
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