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Quantum field theory

  1. Dec 7, 2008 #1
    In quantum field theory a field is described by a multiparticles state? And, a single particle is itself a field?
  2. jcsd
  3. Dec 7, 2008 #2


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    In QFT, fields are operators, not states.
  4. Dec 8, 2008 #3
    Yes I know, but fields are describe as a system of infinite harmonic oscillators, and the eigenstates of this system (eigenstates of the Hamiltonian) are multiparticle-states. So, if in this state there is only a particle, is it identified with the field?
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