期望值计算支持；更新后端调用

2026-05-07 11:19:45 +08:00
parent f776fbb04f
commit fbae48eb3d
16 changed files with 567 additions and 1413 deletions
--- a/tests/test_expectation.py
+++ b/tests/test_expectation.py
@@ -35,7 +35,7 @@ def test_observable_expval(backend, nqubits):
    numpy_backend = construct_backend("numpy")
    ham, ham_form = build_observable(nqubits)
    circ = build_circuit(nqubits=nqubits, nlayers=1)
-
+    
    exact_expval = numpy_backend.calculate_expectation_state(
        hamiltonian=ham,
        state=circ().state(),