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cirq.SimulationStateBase

An interface for quantum states as targets for operations.

cirq.SimulationStateBase(
    *,
    qubits: Sequence[cirq.Qid],
    classical_data: (cirq.ClassicalDataStore | None) = None
)

Args
`qubits`	The canonical ordering of qubits.
`classical_data`	The shared classical data container for this simulation.

Attributes
`classical_data`
`log_of_measurement_results`	Gets the log of measurement results.
`qubit_map`
`qubits`

Methods

apply_operation(
    op: cirq.Operation
)

@abc.abstractmethod
copy(
    deep_copy_buffers: bool = True
) -> Self

Creates a copy of the object.

Args
`deep_copy_buffers`	If True, buffers will also be deep-copied. Otherwise the copy will share a reference to the original object's buffers.

Returns
A copied instance.

@abc.abstractmethod
create_merged_state() -> TSimulationState

Creates a final merged state.

@abc.abstractmethod
sample(
    qubits: list[cirq.Qid],
    repetitions: int = 1,
    seed: cirq.RANDOM_STATE_OR_SEED_LIKE = None
) -> np.ndarray

Samples the state value.

@abc.abstractmethod
__getitem__(
    item: (cirq.Qid | None)
) -> TSimulationState

Gets the item associated with the qubit.

@abc.abstractmethod
__iter__() -> Iterator[cirq.Qid | None]

Iterates the keys of the mapping.

@abc.abstractmethod
__len__() -> int

Gets the number of items in the mapping.