def test_EntropyLinear():
"Entropy: Linear entropy"
# test_ entropy_vn = 0 for pure state
psi = rand_ket(10)
assert_equal(abs(entropy_linear(psi)) <= 1e-13, True)
# test_ linear entropy always less than or equal to VN entropy
rhos = [rand_dm(6) for k in range(10)]
for k in rhos:
assert_equal(entropy_linear(k) <= entropy_vn(k), True)
def test_EntropyLinear():
"Linear entropy"
# test_ entropy_vn = 0 for pure state
psi = rand_ket(10)
assert_equal(abs(entropy_linear(psi)) <= 1e-13, True)
# test_ linear entropy always less than or equal to VN entropy
rhos = [rand_dm(6) for k in range(10)]
for k in rhos:
assert_equal(entropy_linear(k) <= entropy_vn(k), True)
def test_pure_state(self):
assert abs(qutip.entropy_linear(qutip.rand_ket(10))) < 1e-12
def test_less_than_von_neumann(self):
dm = qutip.rand_dm(10)
assert qutip.entropy_linear(dm) <= qutip.entropy_vn(dm)