QT,Quantum Theory,quantum theories,Quantum Theorie

Quantum theory is a general theoretical framework to describe states and interactions in Nature. It does so successfully for the strong, weak, and electromagnetic interactions. Gravity is, however, still described by a classical theory – Einstein’s theory of general relativity, also called geometrodynamics. So far, general relativity seems to accommodate all observations which include gravity; there exist some phenomena which could in principle need a more general theory for their explanation (Dark Matter, Dark Energy, Pioneer Anomaly), but this is an open issue...

Claus Kiefer. Quantum Gravity (General) and Applications