def test_from_single(pauli):
q0, = _make_qubits(1)
assert PauliString.from_single(q0, pauli) == PauliString({q0: pauli})
def test_commutes_with():
q0, q1, q2 = _make_qubits(3)
assert PauliString.from_single(q0, Pauli.X).commutes_with(
PauliString.from_single(q0, Pauli.X))
assert not PauliString.from_single(q0, Pauli.X).commutes_with(
PauliString.from_single(q0, Pauli.Y))
assert PauliString.from_single(q0, Pauli.X).commutes_with(
PauliString.from_single(q1, Pauli.X))
assert PauliString.from_single(q0, Pauli.X).commutes_with(
PauliString.from_single(q1, Pauli.Y))
assert PauliString({
q0: Pauli.X,
q1: Pauli.Y
}).commutes_with(PauliString({
q0: Pauli.X,
q1: Pauli.Y
}))
assert not PauliString({
q0: Pauli.X,
q1: Pauli.Y
}).commutes_with(PauliString({
q0: Pauli.X,
q1: Pauli.Z
}))
assert PauliString({
q0: Pauli.X,
q1: Pauli.Y
}).commutes_with(PauliString({
q0: Pauli.Y,
q1: Pauli.X
}))
assert PauliString({
q0: Pauli.X,
q1: Pauli.Y
}).commutes_with(PauliString({
q0: Pauli.Y,
q1: Pauli.Z
}))
assert PauliString({
q0: Pauli.X,
q1: Pauli.Y
}).commutes_with(PauliString({
q0: Pauli.X,
q1: Pauli.Y,
q2: Pauli.Z
}))
assert not PauliString({
q0: Pauli.X,
q1: Pauli.Y
}).commutes_with(PauliString({
q0: Pauli.X,
q1: Pauli.Z,
q2: Pauli.Z
}))
assert PauliString({
q0: Pauli.X,
q1: Pauli.Y
}).commutes_with(PauliString({
q0: Pauli.Y,
q1: Pauli.X,
q2: Pauli.Z
}))
assert PauliString({
q0: Pauli.X,
q1: Pauli.Y
}).commutes_with(PauliString({
q0: Pauli.Y,
q1: Pauli.Z,
q2: Pauli.X
}))
assert PauliString({
q0: Pauli.X,
q1: Pauli.Y
}).commutes_with(PauliString({
q2: Pauli.X,
q1: Pauli.Y
}))
assert not PauliString({
q0: Pauli.X,
q1: Pauli.Y
}).commutes_with(PauliString({
q2: Pauli.X,
q1: Pauli.Z
}))
assert not PauliString({
q0: Pauli.X,
q1: Pauli.Y
}).commutes_with(PauliString({
q2: Pauli.Y,
q1: Pauli.X
}))
assert not PauliString({
q0: Pauli.X,
q1: Pauli.Y
}).commutes_with(PauliString({
q2: Pauli.Y,
q1: Pauli.Z
}))
