section_path: Research/Research fields
section_name: Research fields
paragraph_text: Research fields
  
  Contemporary research in physics can be broadly divided into nuclear and particle physics; condensed matter physics; atomic, molecular, and optical physics; astrophysics; and applied physics. Some physics departments also support physics education research and physics outreach.
  
  Since the 20th century, the individual fields of physics have become increasingly specialised, and today most physicists work in a single field for their entire careers. "Universalists" such as Einstein (1879–1955) and Lev Landau (1908–1968), who worked in multiple fields of physics, are now very rare.
  
  The major fields of physics, along with their subfields and the theories and concepts they employ, are shown in the following table.