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Fix labs effective_hamiltonian test #8257

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Merged
merged 4 commits into from
Sep 25, 2025
Merged

Fix labs effective_hamiltonian test #8257

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1d39b36
fix starmap issue with generator
soranjh Sep 12, 2025
e3d7cf8
Merge branch 'master' into fix_labs_effective_ham
willjmax Sep 25, 2025
66ff97e
update changelog
soranjh Sep 25, 2025
2066186
Merge branch 'fix_labs_effective_ham' of https://github.com/PennyLane…
soranjh Sep 25, 2025
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4 changes: 2 additions & 2 deletions pennylane/labs/trotter_error/product_formulas/error.py
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Original file line number Diff line number Diff line change
Expand Up @@ -96,11 +96,11 @@ def effective_hamiltonian(
with executor(max_workers=num_workers) as ex:
partial_sum = ex.starmap(
_eval_commutator,
(
[
(commutator, coeff, fragments)
for ith_order in bch
for commutator, coeff in ith_order.items()
),
],
)

eff = _AdditiveIdentity()
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