Source code for braket.circuits.angled_gate

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from typing import Sequence

from braket.circuits.gate import Gate


[docs]class AngledGate(Gate): """ Class `AngledGate` represents a quantum gate that operates on N qubits and an angle. """ def __init__(self, angle: float, qubit_count: int, ascii_symbols: Sequence[str]): """ Args: angle (float): The angle of the gate in radians. qubit_count (int): The number of qubits that this gate interacts with. ascii_symbols (Sequence[str]): ASCII string symbols for the gate. These are used when printing a diagram of a circuit. The length must be the same as `qubit_count`, and index ordering is expected to correlate with the target ordering on the instruction. For instance, if a CNOT instruction has the control qubit on the first index and target qubit on the second index, the ASCII symbols should have `["C", "X"]` to correlate a symbol with that index. Raises: ValueError: If the `qubit_count` is less than 1, `ascii_symbols` are `None`, or `ascii_symbols` length != `qubit_count`, or `angle` is`None` """ super().__init__(qubit_count=qubit_count, ascii_symbols=ascii_symbols) if angle is None: raise ValueError(f"angle must not be None") self._angle = angle @property def angle(self) -> float: """ Returns the angle for the gate Returns: angle (float): The angle of the gate in radians """ return self._angle