def test_coherent_state(self):
"""Test the coherent state is correct."""
self.logTestName()
a = 0.432-0.123j
means, cov = coherent_state(a, hbar=hbar)
self.assertAllAlmostEqual(means, np.array([a.real, a.imag])*np.sqrt(2*hbar), delta=self.tol)
self.assertAllAlmostEqual(cov, np.identity(2)*hbar/2, delta=self.tol)
def test_coherent_state(self, tol):
"""Test the coherent state is correct."""
a = 0.432 - 0.123j
means, cov = coherent_state(a, hbar=hbar)
assert means == pytest.approx(np.array([a.real, a.imag]) *
np.sqrt(2 * hbar),
abs=tol)
assert cov == pytest.approx(np.identity(2) * hbar / 2, abs=tol)