Quantum - Electrodynamics

QED is often called the most successful theory in the history of science because its predictions match experimental results with incredible precision—comparable to measuring the distance from New York to Los Angeles within the width of a human hair. Core Principles

An electron emits or absorbs a photon at a specific place and time. Why It Matters Quantum Electrodynamics

According to Feynman’s formulation, the entire universe of QED can be boiled down to three simple actions: A photon goes from one place and time to another. An electron goes from one place and time to another. QED is often called the most successful theory