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What is the opposite of a field theory?

  1. Mar 4, 2015 #1

    I understand that Maxwell's equations, and General Relativity are both field theories. I am trying to understand what the opposite of a field theory is, or what is not a field theory. For example, am I correct in believing that Newton's Laws are not a field theory? Is that is true then what type of theory is represented by Newton's Laws?

  2. jcsd
  3. Mar 4, 2015 #2
    If you describe your quantities as a field, then they obey a field equation... otherwise not.
    As you said, particles described in Newton equations are not treated as fields (extended over a region of space) but as points.
  4. Mar 7, 2015 #3
    So what would you call this type of theory in general? Would it be a particle theory or an 'action at a distance theory?' Is there a general name for theories which are not field theories? Thanks
  5. Mar 9, 2015 #4
    I would call it point-particle theory...
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