The Einstein-Hopf Model

The Einstein-Hopf model is a theoretical framework used to describe how light interacts with matter at a quantum level. Specifically, it addresses the emission and absorption of radiation by atoms. The model illustrates the concept of quantized energy levels within an atom, explaining how energy transitions lead to the release or absorption of photons (light particles). This framework is crucial for understanding processes like fluorescence and the behavior of lasers, providing insights into both atomic structure and the nature of light itself, bridging concepts from quantum mechanics and electromagnetism.