dextercioby said:What you call "the entire arbitrary motion of charged particles in electromagnetic fields, in all situations" is really limited in Quantum Electrodynamics. It's either that one deals with so-called "bound problems" or "scattering problems". Due to the slow divergence of the perturbative expansion of the S-matrix elements, one can get very good numerical predictions. But only under this limited spectrum of "motions".
goran d said:the entire arbitrary motion of charged particles in electromagnetic fields
QED stands for Quantum Electrodynamics and it is a quantum field theory that describes the interactions between electrons and photons. It is important in science because it provides a mathematical framework for understanding and predicting the behavior of these particles, which is crucial in many fields such as particle physics, cosmology, and chemistry.
QED has been extensively tested and has shown to have an incredible level of precision in its predictions. It has been experimentally verified to an accuracy of 10 parts per billion, making it one of the most successful and precise theories in physics.
The claimed precision of QED is a result of various factors, including the rigorous mathematical framework it is based on, the use of renormalization techniques to account for infinities in calculations, and the incorporation of experimental data to refine and validate its predictions.
Yes, QED has been successfully applied to other particles such as muons, quarks, and W and Z bosons. It is a fundamental theory that describes the interactions of all charged particles with each other and with electromagnetic fields.
While QED has shown to be extremely precise in its predictions, it is not a complete theory of particle interactions. It does not take into account the effects of gravity and it is not compatible with the theory of general relativity. Therefore, at very high energies or in extreme gravitational fields, QED may not accurately describe the behavior of particles.