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michealsmith
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wat do u need to learn to learn qcd and qed
michealsmith said:wat do u need to learn to learn qcd and qed
Norman said:If you really want to learn QED and QCD you will need:
Classical Field Theory
Classical Electrodynamics
Relativity
Group Theory
Relativistic and Non-Relativistic Quantum Mechanics
Introductory Quantum Field Theory
The example of the rotation group may help you to understand it.tashi said:What is group theory?
I looked it up and at first it seemed like another way of manipulating numbers, like matrices or tensors, but then they got into 'classifications of geometry' and permutations and now I'm totally confused.
QCD (Quantum Chromodynamics) and QED (Quantum Electrodynamics) are two of the fundamental theories of physics that describe the behavior of subatomic particles and their interactions with each other.
QCD and QED are essential for understanding the properties and behavior of matter at a fundamental level. They are also crucial for many modern technologies, such as particle accelerators and nuclear power plants.
The main difference between QCD and QED is the types of particles and forces they describe. QCD deals with the strong nuclear force and the behavior of quarks and gluons, while QED deals with the electromagnetic force and the behavior of electrons and photons.
QCD and QED are both important components of the Standard Model, which is the current theory that explains the behavior of all known subatomic particles and their interactions. QCD and QED provide the framework for understanding the strong and electromagnetic forces, respectively, which are two of the four fundamental forces in the Standard Model.
While QCD and QED are primarily used in particle physics, they also have applications in other fields such as cosmology, astrophysics, and condensed matter physics. They provide a powerful framework for understanding the behavior of matter at a microscopic level and can be applied to a wide range of phenomena.