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refactor: Some properties of field specifications (#285)

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* refactor: Fix field struct defn.

* rename: FieldStruct to FieldSpecification

* feat: Add examples of field specifications

* docs: Slight improvement of module docs
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Joseph Tooby-Smith 2025-01-21 06:11:47 +00:00 • committed by GitHub
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HepLean/PerturbationTheory/Algebras/CrAnAlgebra/NormalOrder.lean
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@ -3,23 +3,18 @@ Copyright (c) 2025 Joseph Tooby-Smith. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Joseph Tooby-Smith
-/
import HepLean.PerturbationTheory.FieldStruct.NormalOrder
import HepLean.PerturbationTheory.FieldSpecification.NormalOrder
import HepLean.PerturbationTheory.Algebras.CrAnAlgebra.SuperCommute
import HepLean.PerturbationTheory.Koszul.KoszulSign
/-!
# Normal Ordering
# Normal Ordering in the CrAnAlgebra
The normal ordering puts all creation operators to the left and all annihilation operators to the
right. It acts on `CrAnStates` and defines a linear map from the `CrAnAlgebra` to itself.
The normal ordering satisfies a number of nice properties with relation to the operator
algebra 𝓞.A.
-/
namespace FieldStruct
variable {𝓕 : FieldStruct}
namespace FieldSpecification
variable {𝓕 : FieldSpecification}
open FieldStatistic
/-!
@ -552,4 +547,4 @@ end
end CrAnAlgebra
end FieldStruct
end FieldSpecification