Quantum field theory Elementary Particles, Quantum Field Theory 10 Elementary particles (Physics) 10 Physics 7 Quantum Physics 7 Quantum physics 7 Mathematical Methods in Physics 5 more ... Mathematical physics 4 Theoretical, Mathematical and Computational Physics 3 Nuclear physics 2 Quantum Field Theories, String Theory 2 String theory 2 Algebraic Topology 1 Algebraic topology 1 Atomic, Molecular, Optical and Plasma Physics 1 Atoms 1 Complex Systems 1 Dynamical systems 1 Functional Analysis 1 Functional analysis 1 Global Analysis and Analysis on Manifolds 1 Global analysis (Mathematics) 1 Heavy ions 1 Information and Communication, Circuits 1 Information theory 1 Manifolds (Mathematics) 1 Mathematical Physics 1 Nuclear Physics, Heavy Ions, Hadrons 1 Operator Theory 1 Operator theory 1 less ...