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cirq_google.devices.XmonDevice

THIS CLASS IS DEPRECATED.

cirq_google.devices.XmonDevice(
    *args, **kwargs
)

IT WILL BE REMOVED IN cirq v0.15.

XmonDevice will no longer be supported.

measurement_duration The maximum duration of a measurement.
exp_w_duration The maximum duration of an ExpW operation.
exp_11_duration The maximum duration of an ExpZ operation.
qubits Qubits on the device, identified by their x, y location.

metadata Return the metadata for this device

Methods

at

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at(
    row: int, col: int
) -> Optional[cirq.GridQubit]

Returns the qubit at the given position, if there is one, else None.

can_add_operation_into_moment

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can_add_operation_into_moment(
    operation: cirq.Operation, moment: cirq.Moment
) -> bool

THIS FUNCTION IS DEPRECATED.

IT WILL BE REMOVED IN cirq v0.15.

can_add_operation_into_moment will be removed in the future. Consider using device.validate_circuit instead.

Determines if it's possible to add an operation into a moment.

    For example, on the XmonDevice two CZs shouldn't be placed in the same
    moment if they are on adjacent qubits.

    Args:
        operation: The operation being added.
        moment: The moment being transformed.

    Returns:
        Whether or not the moment will validate after adding the operation.

col

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col(
    col: int
) -> cirq_google.line.placement.anneal.LineSequence

Returns the qubits in the given column, in ascending order.

decompose_operation

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decompose_operation(
    operation: cirq.Operation
) -> cirq.OP_TREE

THIS FUNCTION IS DEPRECATED.

IT WILL BE REMOVED IN cirq v0.15.

XmonDevice.decompose_operation is deprecated. Please use cirq.optimize_for_target_gateset() and cirq.CZTargetGateset.

duration_of

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duration_of(
    operation
)

is_supported_gate

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@classmethod
is_supported_gate(
    gate: cirq.Gate
)

Returns true if the gate is allowed.

neighbors_of

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neighbors_of(
    qubit: cirq.GridQubit
)

Returns the qubits that the given qubit can interact with.

qid_pairs

qid_pairs() -> Optional[FrozenSet['cirq.SymmetricalQidPair']]

THIS FUNCTION IS DEPRECATED.

IT WILL BE REMOVED IN cirq v0.15.

qubit coupling data can now be found in device.metadata if provided.

Returns a set of qubit edges on the device, if possible.

    This property can be overridden in child classes for special handling.
    The default handling is: GridQids and LineQids will have neighbors as
    edges, and others will be fully connected.

    Returns:
        If the device has a finite set of qubits, then a set of all edges
        on the device is returned.

        If the device has no well defined finite set of qubits (e.g.
        `cirq.UnconstrainedDevice` has this property), then `None` is
        returned.

qubit_set

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qubit_set() -> FrozenSet[cirq.GridQubit]

THIS FUNCTION IS DEPRECATED.

IT WILL BE REMOVED IN cirq v0.15.

Use metadata.qubit_set if applicable.

row

View source

row(
    row: int
) -> cirq_google.line.placement.anneal.LineSequence

Returns the qubits in the given row, in ascending order.

validate_circuit

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validate_circuit(
    circuit: cirq.AbstractCircuit
)

Raises an exception if a circuit is not valid.

Args
circuit The circuit to validate.

Raises
ValueError The circuit isn't valid for this device.

validate_gate

View source

validate_gate(
    gate: cirq.Gate
)

Raises an error if the given gate isn't allowed.

Raises
ValueError Unsupported gate.

validate_moment

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validate_moment(
    moment: cirq.Moment
)

Raises an exception if a moment is not valid.

Args
moment The moment to validate.

Raises
ValueError The moment isn't valid for this device.

validate_operation

View source

validate_operation(
    operation: cirq.Operation
)

Raises an exception if an operation is not valid.

Args
operation The operation to validate.

Raises
ValueError The operation isn't valid for this device.

__eq__

__eq__(
    other: _SupportsValueEquality
) -> bool