Self-energy

Self-energy refers to the energy that a particle possesses due to its own field or interactions with its own electromagnetic field. This concept arises in various branches of physics, particularly in quantum field theory and electromagnetism. Here are some key points regarding self-energy: 1. **Electromagnetic Self-Energy**: In classical electrodynamics, the self-energy of a charged particle, such as an electron, considers the energy associated with its own electric field.