 Relativistic quantum mechanics

Relativistic quantum mechanics is a field that combines the principles of quantum mechanics, which describes the behavior of particles at very small scales, with the principles of special relativity, which describes the behavior of objects moving at speeds comparable to the speed of light. The goal of relativistic quantum mechanics is to create a framework that can accurately describe particles and their interactions while accounting for relativistic effects. ### Key Features 1.

The first really good quantum mechanics theory made compatible with special relativity was the Dirac equation.

And then came quantum electrodynamics to improve it: Dirac equation vs quantum electrodynamics.

TODO: does it use full blown QED, or just something intermediate?

www.youtube.com/watch?v=NtnsHtYYKf0 "Mercury and Relativity - Periodic Table of Videos" by Periodic Videos (2013). Doesn't give the key juicy details/intuition. Also mentioned on Wikipedia: en.wikipedia.org/wiki/Relativistic_quantum_chemistry#Mercury