A Wick contraction replaces a selected pair of free fields by their two-point function. Summing pairings computes Gaussian correlation functions and supplies the propagator lines and combinatorial factors of a Feynman diagram.
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- B222 contribution to the one-loop matter bispectrum
- B411 contribution to the one-loop matter bispectrum
- Centered quadratic Gaussian transformation
- Cubic time-derivative curvature bispectrum
- Curvature bispectrum from a zeta zeta-prime-squared interaction
- De Sitter curvature mode function
- Distinguishable scalar scattering by a shared mediator
- Free chiral Majorana fermion conformal field theory
- Full-sky cubic bispectrum estimator
- Gaussian evaluation of a free scalar generating functional
- Normal-ordered product
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- Quartic interaction generated by a sextic interaction
- Spatial-gradient cubic curvature bispectrum
- Tricritical sextic beta function
- Unit-speed cubic time-derivative bispectrum
- Unsmoothed matter-density reduced skewness
- Wick-pairing multiplicity for a zeta zeta-prime-squared vertex
- Zero-dimensional quartic perturbation series
- Zero-dimensional scalar field theory
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