cirq.contrib.acquaintance.devices.AcquaintanceDevice

View source on GitHub

A device that contains only acquaintance and permutation gates.

Inherits From: Device

Methods

can_add_operation_into_moment

View source

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

View source

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

View source

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

View source

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

View source

validate_circuit(
    circuit: "cirq.AbstractCircuit"
) -> 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

View source

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

View source

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.

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