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Add parity warnings to Fermion and Electron site types #1662

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Add parity warnings to Fermion and Electron site types #1662

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3 changes: 3 additions & 0 deletions src/lib/SiteTypes/src/sitetypes/electron.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,9 @@ function space(
if !isnothing(conserve_parity)
conserve_nfparity = conserve_parity
end
if conserve_nf && conserve_nfparity
@warn "Setting conserve_nfparity=true when conserve_nf=true for \"Electron\" SiteType will have no effect, and only the \"Nf\" quantum number will be explicitly conserved."
end
if conserve_sz && conserve_nf
return [
QN((qnname_nf, 0, -1), (qnname_sz, 0)) => 1
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3 changes: 3 additions & 0 deletions src/lib/SiteTypes/src/sitetypes/fermion.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,9 @@ function space(
if !isnothing(conserve_parity)
conserve_nfparity = conserve_parity
end
if conserve_nf && conserve_nfparity
@warn "Setting conserve_nfparity=true when conserve_nf=true for \"Fermion\" SiteType will have no effect, and only the \"Nf\" quantum number will be explicitly conserved."
end
if conserve_sz == true
conserve_sz = "Up"
end
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