Photons

Quantum Electrodynamics

Quantum electrodynamics (QED) is the quantum field theory of electromagnetism. It describes how light and matter interact at the most fundamental level. Key Characteristics / Core Concepts Quantization of the Electromagnetic Field: Light is described as a collection of particles called photons, each with a specific energy and momentum. Quantization of Charge: Electric charge exists … Read more

Quantum Optics

Quantum optics is the study of the interaction of light and matter at the quantum level, where light is treated as discrete packets of energy called photons. It explores how quantum phenomena, like superposition and entanglement, affect the behavior of light and its interaction with atoms and other quantum systems. Key Characteristics / Core Concepts … Read more