quantumveld
Quantum field theory, often abbreviated as QFT, is a theoretical framework that combines quantum mechanics with special relativity. It is the fundamental theory underlying much of modern particle physics and condensed matter physics. In QFT, the fundamental entities are not particles, but rather fields that permeate all of spacetime. These fields are quantized, meaning their excitations are discrete and can be interpreted as particles.
The concept of a quantum field arises from the idea that even in the absence of any
QFT provides a way to describe the creation and annihilation of particles, as well as their interactions.