mindquantum.core.gates.ParameterGate

class mindquantum.core.gates.ParameterGate(pr: ParameterResolver, name, n_qubits, *args, obj_qubits=None, ctrl_qubits=None, **kwargs)

Gate that is parameterized.

Parameters

• pr (ParameterResolver) – the parameter for parameterized gate.

• name (str) – the name of this parameterized gate.

• n_qubits (int) – the qubit number of this parameterized gate.

• args (list) – other arguments for quantum gate.

• obj_qubits (Union[int, List[int]]) – the qubit that this gate act on. Default: None.

• ctrl_qubits (Union[int, List[int]]) – the control qubit of this gate. Default: None.

• kwargs (dict) – other arguments for quantum gate.

get_parameters()

Return a list of parameters of parameterized gate.

no_grad()

Mark all parameters as not requiring gradient calculations.

no_grad_part(*names)

Set certain parameters that do not need grad. Inplace operation.

Parameters

names (tuple[str]) – Parameters that not requires grad.

Returns

BasicGate, with some part of parameters not need to update gradient.

requires_grad()

Mark all parameters as requiring gradient calculations.

requires_grad_part(*names)

Set certain parameters that need grad. Inplace operation.

Parameters

names (tuple[str]) – Parameters that requires grad.

Returns

BasicGate, with some part of parameters need to update gradient.