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2 changes: 1 addition & 1 deletion recirq/hfvqe/objective_test.py
Original file line number Diff line number Diff line change
Expand Up @@ -48,7 +48,7 @@ def get_opdm(wf, num_orbitals, transform=of.jordan_wigner):
# not using display style objects
for p, q in product(range(num_orbitals), repeat=2):
operator = creation_ops[p] @ creation_ops[q].conj().transpose()
opdm_hw[p, q] = wf.conj().T @ operator @ wf
opdm_hw[p, q] = (wf.conj().T @ operator @ wf)[0, 0]

return opdm_hw

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4 changes: 2 additions & 2 deletions recirq/toric_code/toric_code_plaquettes.py
Original file line number Diff line number Diff line change
Expand Up @@ -109,10 +109,10 @@ def expectation_value(
qubit_idxs = code.z_plaquette_to_qubit_idxs(row, col)

total_qubits = len(code.qubits)
parities = data.applymap(
parities = data.map(
lambda value: cls.compute_parity(value, qubit_idxs, total_qubits)
)
return float(parities.mean())
return float(parities.mean().iloc[0])

@staticmethod
def compute_parity(value: int, qubit_idxs: Iterable[int], total_qubits: int) -> int:
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