Research proof index

For a list φs = φ₀…φₙ of 𝓕.FieldOp, a Wick contraction φsΛ of φs, the following relation holds φ * φsΛ.staticWickTerm = ∑ k, (φsΛ ↩Λ φ 0 k).staticWickTerm where the sum is over all k in Option φsΛ.uncontracted, so k is either none or some k. The proof proceeds as follows: - ofFieldOp_mul_normalOrder_ofFieldOpList_eq_sum is used to e...

For a list φs = φ₀…φₙ of 𝓕.FieldOp, a Wick contraction φsΛ of φs, an element φ of 𝓕.FieldOp, and a k in φsΛ.uncontracted, (φsΛ ↩Λ φ 0 (some k)).wickTerm is equal to the product of - the sign 𝓢(φ, φ₀…φᵢ₋₁) - the sign φsΛ.sign - φsΛ.staticContract - s • [anPart φ, ofFieldOp φs[k]]ₛ where s is the sign associated with moving `...