Path Integral

A path integral is a way to understand how particles behave in quantum physics by considering all possible ways they might move from one point to another. Instead of thinking of a particle taking a single, fixed path, the path integral sums over every conceivable route, assigning a weight based on how likely each is. This approach provides a comprehensive picture of the particle's behavior, capturing the probabilistic nature of quantum mechanics. Essentially, it treats the particle’s journey as a collection of all possible paths, helping scientists predict outcomes more accurately.