- Quantum Field Theories, String Theory 487
- Elementary Particles, Quantum Field Theory 484
- Quantum Physics 373
- Classical and Quantum Gravitation, Relativity Theory 370
- Measurement Science and Instrumentation 120
- Astronomy, Astrophysics and Cosmology 117
- Nuclear Energy 117
- Nuclear Physics, Heavy Ions, Hadrons 117
- Optics, Lasers, Photonics, Optical Devices 19
- Microwaves, RF and Optical Engineering 18
- Optical and Electronic Materials 15
- Physics, general 8
- Quantum Computing 4
- Quantum Information Technology, Spintronics 4
- Astrophysics and Astroparticles 3
- Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) 3
- Aerospace Technology and Astronautics 2
- Condensed Matter Physics 2
- Planetology 2
- Astronomy, Observations and Techniques 1