Quote Originally Posted by highjinx
QFT?
Good question. It means Quantum Field Theory:

Quantum Field Theory (QFT) is the general framework for the description of the physics of relativistic quantum systems, notably of elementary particles. It is the synthesis of Quantum Theory and Special Relativity, supplemented by the principle of Locality in space and time, and by the Spectral Condition in energy and momentum. Algebraic QFT (AQFT) emphasizes the role of algebraic relations among observables which determine, rather than quantum fields proper, a physical system.

Using the concepts of QFT as a basis for research, logic, and applications, it should be possible to solve the problem, and get the girl back, after applying it's various elements of general material uses .

Hope this helps! :dance: