Allow SU2Irrep symmetry in j1_j2_model (#248)

Yue-Zhengyuan · web-flow · commit cb1f0c8bef88 · 2025-08-25T21:45:47.000+08:00
diff --git a/src/operators/models.jl b/src/operators/models.jl
@@ -169,7 +169,7 @@ function j1_j2_model(
         T::Type{<:Number}, S::Type{<:Sector}, lattice::InfiniteSquare;
         J1 = 1.0, J2 = 1.0, spin = 1 // 2, sublattice = true,
     )
-    term_AA = S_xx(T, S; spin) + S_yy(T, S; spin) + S_zz(T, S; spin)
+    term_AA = S_exchange(T, S; spin)
     term_AB = if sublattice
         -S_xx(T, S; spin) + S_yy(T, S; spin) - S_zz(T, S; spin)  # Apply sublattice rotation
     else

Original file line number	Diff line number	Diff line change
`@@ -169,7 +169,7 @@ function j1_j2_model(`
`169`	`169`	`T::Type{<:Number}, S::Type{<:Sector}, lattice::InfiniteSquare;`
`170`	`170`	`J1 = 1.0, J2 = 1.0, spin = 1 // 2, sublattice = true,`
`171`	`171`	`)`
`172`		`- term_AA = S_xx(T, S; spin) + S_yy(T, S; spin) + S_zz(T, S; spin)`
	`172`	`+ term_AA = S_exchange(T, S; spin)`
`173`	`173`	`term_AB = if sublattice`
`174`	`174`	`-S_xx(T, S; spin) + S_yy(T, S; spin) - S_zz(T, S; spin) # Apply sublattice rotation`
`175`	`175`	`else`