quantum field theory

English

Noun

quantum field theory (countable and uncountable, plural quantum field theories)

  1. (quantum mechanics) A theory of quantum fields; the result of applying second quantization to Classical Relativistic Field Theory.
    Synonym: QFT (initialism)
    The central identity of quantum field theory (according to A. Zee) is an equation which shows how to perturbatively derive a set of Feynman rules from a Lagrangian.

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References

  • Robert D. Klauber (2013), Student Friendly Quantum Field Theory, Second edition, Fairfield, Iowa: Sandtrove Press, published 2018, →ISBN, →OCLC, §3.2, page 48