def _value_equality_values_(self):
if self.phase_exponent == 0:
return common_gates.XPowGate(
exponent=self._exponent,
global_shift=self._global_shift)._value_equality_values_()
if self.phase_exponent == 0.5:
return common_gates.YPowGate(
exponent=self._exponent,
global_shift=self._global_shift)._value_equality_values_()
return self.phase_exponent, self._canonical_exponent, self._global_shift
def _strat_act_on_clifford_tableau_from_single_qubit_decompose(
val: Any, args: 'cirq.ActOnCliffordTableauArgs', qubits: Sequence['cirq.Qid']
) -> bool:
if num_qubits(val) == 1:
if not has_unitary(val):
return NotImplemented
u = unitary(val)
clifford_gate = SingleQubitCliffordGate.from_unitary(u)
if clifford_gate is not None:
for axis, quarter_turns in clifford_gate.decompose_rotation():
if axis == pauli_gates.X:
common_gates.XPowGate(exponent=quarter_turns / 2)._act_on_(args, qubits)
elif axis == pauli_gates.Y:
common_gates.YPowGate(exponent=quarter_turns / 2)._act_on_(args, qubits)
else:
assert axis == pauli_gates.Z
common_gates.ZPowGate(exponent=quarter_turns / 2)._act_on_(args, qubits)
return True
return NotImplemented
def __pow__(self: '_PauliY',
exponent: 'cirq.TParamVal') -> common_gates.YPowGate:
return common_gates.YPowGate(
exponent=exponent) if exponent != 1 else _PauliY()
def __pow__(self: '_PauliY',
exponent: value.TParamVal) -> common_gates.YPowGate:
return common_gates.YPowGate(exponent=exponent)
def _decompose_(self, qubits: Tuple['cirq.Qid', ...]) -> 'cirq.OP_TREE':
yield common_gates.YPowGate(exponent=-0.5).on_each(*qubits)
yield ZZPowGate(exponent=self.exponent, global_shift=self.global_shift)(*qubits)
yield common_gates.YPowGate(exponent=0.5).on_each(*qubits)
def __pow__(self: '_PauliY',
exponent: Union[sympy.Basic, float]) -> common_gates.YPowGate:
return common_gates.YPowGate(exponent=exponent)
