Quantum chromodynamics is the theory of quarks and gluons, and quantum electrodynamics or second quantization is the theory responsible for performing the quantization of fields.
It is a theory that “analyzes” explanations about how elementary particles behave.
This theory is considered the fundamental of strong interactions, and is part of the theory known as the Standard Model of Elementary Particles and Fundamental Forces of Nature.
Regarding the understanding of the fundamental structure of matter and its progress achieved in the 20th century, starting with quantum mechanics, leading to understanding and discoveries of the atomic structure and advances in nuclear energy, quantum chromodynamics is the result of the progress achieved. .
But even with such progress, mathematics still does not have tools in its analytical nature capable of drawing predictions from theory.
Quantum electrodynamics or second quantization is the theory responsible for performing the quantization of fields, whereas quantum mechanics only performs the quantization of matter.
This theory considers both matter and force conductors, providing a theoretical basis to be analyzed between electromagnetic radiation interactions.