Branch of physics

relativistic quantum mechanics high energy physics microphysics applied physics classical electromagnetism Laser science molecular biophysics general physics theory of relativity infinitesimal deformation theory high energy density physics stellar physics semiconductor physics photonics geometrical optics soil mechanics molecular physics accelerator physics holography atmospheric physics quantum field theory stochastic thermodynamics plasma physics thermal physics cryonics calorimetry nuclear astrophysics modern physics space physics statistical physics biophysics solid-state physics quantum optics nonlinear optics B-physics nuclear physics classical physics X-ray crystallography analytical mechanics seismology quantum statistical mechanics bioacoustics critical phenomena X-ray spectroscopy polymer physics neutron diffraction quantum mechanics