def test_invalid_unambiguous_state_exclusion_probs(self):
"""Invalid probability vector for unambiguous state exclusion."""
with self.assertRaises(ValueError):
mat1 = bell(0) * bell(0).conj().T
mat2 = bell(1) * bell(1).conj().T
states = [mat1, mat2]
unambiguous_state_exclusion(states, [1, 2, 3])
def test_unambiguous_state_exclusion_one_state_vec(self):
"""Unambiguous state exclusion for single vector state."""
vec = bell(0)
states = [vec]
res = unambiguous_state_exclusion(states)
self.assertEqual(np.isclose(res, 0), True)
def test_unambiguous_state_exclusion_one_state(self):
"""Unambiguous state exclusion for single state."""
mat = bell(0) * bell(0).conj().T
states = [mat]
res = unambiguous_state_exclusion(states)
self.assertEqual(np.isclose(res, 0), True)
def test_unambiguous_state_exclusion_three_state_vec(self):
"""Unambiguous state exclusion for three Bell state vectors."""
mat1 = bell(0)
mat2 = bell(1)
mat3 = bell(2)
states = [mat1, mat2, mat3]
probs = [1 / 3, 1 / 3, 1 / 3]
res = unambiguous_state_exclusion(states, probs)
self.assertEqual(np.isclose(res, 0), True)
def test_unambiguous_state_exclusion_three_state(self):
"""Unambiguous state exclusion for three Bell state density matrices."""
mat1 = bell(0) * bell(0).conj().T
mat2 = bell(1) * bell(1).conj().T
mat3 = bell(2) * bell(2).conj().T
states = [mat1, mat2, mat3]
probs = [1 / 3, 1 / 3, 1 / 3]
res = unambiguous_state_exclusion(states, probs)
self.assertEqual(np.isclose(res, 0), True)
def test_invalid_unambiguous_state_exclusion_states(self):
"""Invalid number of states for unambiguous state exclusion."""
with self.assertRaises(ValueError):
states = []
unambiguous_state_exclusion(states)