def test_fswap_adjacent_identity(self):
fswap_adjacent(self.reg, 0)
self.eng.flush()
ordered_wvfn = numpy.array(ordered_wavefunction(self.eng))
expected = numpy.array([1.0] + [0.0] * 7)
self.assertTrue(numpy.allclose(numpy.abs(ordered_wvfn),
numpy.abs(expected)))
def test_fswap_adjacent_001(self):
X | self.reg[2]
fswap_adjacent(self.reg, 0)
self.eng.flush()
ordered_wvfn = numpy.array(ordered_wavefunction(self.eng))
expected = numpy.array([0.0] * 4 + [1.0] + [0.0] * 3)
self.assertTrue(numpy.allclose(numpy.abs(ordered_wvfn),
numpy.abs(expected)))
def test_fswap_adjacent_superposition(self):
All(H) | self.reg
fswap_adjacent(self.reg, 0)
self.eng.flush()
ordered_wvfn = numpy.array(ordered_wavefunction(self.eng))
expected = numpy.array([2. ** -1.5] * 8)
expected[3] *= -1 # bitstring 110 gets sign-flipped by fermionic swap
expected[7] *= -1 # bitstring 111 gets sign-flipped by fermionic swap
self.assertTrue(numpy.allclose(ordered_wvfn, expected * -1j))