cirq.contrib.acquaintance.devices.AcquaintanceDevice

A device that contains only acquaintance and permutation gates.

Inherits From: Device

Methods

can_add_operation_into_moment

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

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.

decompose_operation

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

Returns a device-valid decomposition for the given operation.

This method is used when adding operations into circuits with a device specified, to avoid spurious failures due to e.g. using a Hadamard gate that must be decomposed into native gates.

qid_pairs

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

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() -> Optional[AbstractSet['cirq.Qid']]

Returns a set or frozenset of qubits on the device, if possible.

Returns
If the device has a finite set of qubits, then a set or frozen set of all qubits 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.

validate_circuit

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validate_circuit(
    circuit: "cirq.Circuit"
) -> None

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_moment

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validate_moment(
    moment: "cirq.Moment"
) -> None

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

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validate_operation(
    operation: "cirq.Operation"
) -> None

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.

gate_types (<class 'cirq.contrib.acquaintance.gates.AcquaintanceOpportunityGate'>, <class 'cirq.contrib.acquaintance.permutation.PermutationGate'>)