def controlled_zgate(control_edge: tn.Edge,
target_edge: tn.Edge) -> Tuple[tn.Edge, tn.Edge]:
tensor = [[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, -1]]
gate = backend.create_node(tensor, with_shape=[2, 2, 2, 2])
gate[0] ^ control_edge
gate[3] ^ target_edge
return gate[1], gate[2]
def tgate(edge: tn.Edge) -> tn.Edge:
gate = backend.create_node([[1, 0], [0, exp((1j * pi) / 4)]])
edge ^ gate[1]
return gate[0]
def hgate(edge: tn.Edge) -> tn.Edge:
gate = backend.create_node([[1 / sqrt(2), 1 / sqrt(2)],
[1 / sqrt(2), -1 / sqrt(2)]])
edge ^ gate[1]
return gate[0]
def zgate(edge: tn.Edge) -> tn.Edge:
gate = backend.create_node([[1, 0], [0, -1]])
edge ^ gate[1]
return gate[0]
def ygate(edge: tn.Edge) -> tn.Edge:
gate = backend.create_node([[0, 0 - 1j], [0 + 1j, 0]])
edge ^ gate[1]
return gate[0]
def xgate(edge: tn.Edge) -> tn.Edge:
gate = backend.create_node([[0, 1], [1, 0]])
edge ^ gate[1]
return gate[0]