Quantum scattering theory

Quantum scattering theory describes how particles like electrons or photons interact with target objects or forces, changing their paths or states. It uses the principles of quantum mechanics to predict the probabilities of different outcomes when particles encounter an obstacle or potential. Instead of definite trajectories, it deals with wave-like behaviors and likelihoods, calculating how incoming particles "scatter" into various directions or states. This theory is fundamental in understanding phenomena in physics, chemistry, and materials science, where the behavior of tiny particles influences the properties of molecules, atoms, and fundamental forces.