free field algebra of quantum observables | physics terminology | maths terminology | |
---|---|---|---|
1) | supercommutative product | normal ordered product | pointwise product of functionals |
2) | non-commutative product (deformation induced by Poisson bracket) | operator product | star product for Wightman propagator |
3) | time-ordered product | star product for Feynman propagator | |
perturbative expansion of 2) via 1) | Wick's lemma | Moyal product for Wightman propagator | |
perturbative expansion of 3) via 1) | Feynman diagrams | Moyal product for Feynman propagator |
Last revised on January 18, 2018 at 15:50:43. See the history of this page for a list of all contributions to it.