Sara
Mon Feb 03 2025
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6 answers
1660
What is the Fermion wick's theorem?
The Fermion Wick's theorem, proposed by Gian Carlo Wick, is a fundamental principle in quantum field theory. It provides a method to convert the product of creation and annihilation operators into a sum of their normal-ordered products and corresponding contractions, which finds important applications in Green's function methods and Feynman diagrams.
