def _build_gateset_and_gate_durations(
proto: v2.device_pb2.DeviceSpecification,
) -> Tuple[cirq.Gateset, Dict[cirq.GateFamily, cirq.Duration]]:
"""Extracts gate set and gate duration information from the given DeviceSpecification proto."""
gates_list: List[Union[Type[cirq.Gate], cirq.Gate, cirq.GateFamily]] = []
gate_durations: Dict[cirq.GateFamily, cirq.Duration] = {}
# TODO(#5050) Describe how to add/remove gates.
for gate_spec in proto.valid_gates:
gate_name = gate_spec.WhichOneof('gate')
cirq_gates: List[Union[Type[cirq.Gate], cirq.Gate, cirq.GateFamily]] = []
if gate_name == 'syc':
cirq_gates = [ops.FSimGateFamily(gates_to_accept=[ops.SYC])]
elif gate_name == 'sqrt_iswap':
cirq_gates = [ops.FSimGateFamily(gates_to_accept=[cirq.SQRT_ISWAP])]
elif gate_name == 'sqrt_iswap_inv':
cirq_gates = [ops.FSimGateFamily(gates_to_accept=[cirq.SQRT_ISWAP_INV])]
elif gate_name == 'cz':
cirq_gates = [ops.FSimGateFamily(gates_to_accept=[cirq.CZ])]
elif gate_name == 'phased_xz':
cirq_gates = [cirq.PhasedXZGate, cirq.XPowGate, cirq.YPowGate, cirq.PhasedXPowGate]
elif gate_name == 'virtual_zpow':
cirq_gates = [cirq.GateFamily(cirq.ZPowGate, tags_to_ignore=[ops.PhysicalZTag()])]
elif gate_name == 'physical_zpow':
cirq_gates = [cirq.GateFamily(cirq.ZPowGate, tags_to_accept=[ops.PhysicalZTag()])]
elif gate_name == 'coupler_pulse':
cirq_gates = [experimental_ops.CouplerPulse]
elif gate_name == 'meas':
cirq_gates = [cirq.MeasurementGate]
elif gate_name == 'wait':
cirq_gates = [cirq.WaitGate]
else:
# coverage: ignore
warnings.warn(
f"The DeviceSpecification contains the gate '{gate_name}' which is not recognized"
" by Cirq and will be ignored. This may be due to an out-of-date Cirq version.",
UserWarning,
)
continue
gates_list.extend(cirq_gates)
# TODO(#5050) Allow different gate representations of the same gate to be looked up in
# gate_durations.
for g in cirq_gates:
if not isinstance(g, cirq.GateFamily):
g = cirq.GateFamily(g)
gate_durations[g] = cirq.Duration(picos=gate_spec.gate_duration_picos)
# TODO(#4833) Add identity gate support
# TODO(#5050) Add GlobalPhaseGate support
return cirq.Gateset(*gates_list), gate_durations
import warnings
import cirq
from cirq_google import ops
from cirq_google import transformers
from cirq_google.api import v2
from cirq_google.devices import known_devices
from cirq_google.experimental import ops as experimental_ops
SYC_GATE_FAMILY = cirq.GateFamily(ops.SYC)
SQRT_ISWAP_GATE_FAMILY = cirq.GateFamily(cirq.SQRT_ISWAP)
SQRT_ISWAP_INV_GATE_FAMILY = cirq.GateFamily(cirq.SQRT_ISWAP_INV)
CZ_GATE_FAMILY = cirq.GateFamily(cirq.CZ)
PHASED_XZ_GATE_FAMILY = cirq.GateFamily(cirq.PhasedXZGate)
VIRTUAL_ZPOW_GATE_FAMILY = cirq.GateFamily(cirq.ZPowGate,
tags_to_ignore=[ops.PhysicalZTag()])
PHYSICAL_ZPOW_GATE_FAMILY = cirq.GateFamily(
cirq.ZPowGate, tags_to_accept=[ops.PhysicalZTag()])
COUPLER_PULSE_GATE_FAMILY = cirq.GateFamily(experimental_ops.CouplerPulse)
MEASUREMENT_GATE_FAMILY = cirq.GateFamily(cirq.MeasurementGate)
WAIT_GATE_FAMILY = cirq.GateFamily(cirq.WaitGate)
def _validate_device_specification(
proto: v2.device_pb2.DeviceSpecification) -> None:
"""Raises a ValueError if the `DeviceSpecification` proto is invalid."""
qubit_set = set()
for q_name in proto.valid_qubits:
# Qubit names must be unique.
if q_name in qubit_set:
import warnings
import cirq
from cirq_google import ops
from cirq_google import transformers
from cirq_google.api import v2
from cirq_google.devices import known_devices
from cirq_google.experimental import ops as experimental_ops
SYC_GATE_FAMILY = cirq.GateFamily(ops.SYC)
SQRT_ISWAP_GATE_FAMILY = cirq.GateFamily(cirq.SQRT_ISWAP)
SQRT_ISWAP_INV_GATE_FAMILY = cirq.GateFamily(cirq.SQRT_ISWAP_INV)
CZ_GATE_FAMILY = cirq.GateFamily(cirq.CZ)
PHASED_XZ_GATE_FAMILY = cirq.GateFamily(cirq.PhasedXZGate)
VIRTUAL_ZPOW_GATE_FAMILY = cirq.GateFamily(cirq.ZPowGate, tags_to_ignore=[ops.PhysicalZTag()])
PHYSICAL_ZPOW_GATE_FAMILY = cirq.GateFamily(cirq.ZPowGate, tags_to_accept=[ops.PhysicalZTag()])
COUPLER_PULSE_GATE_FAMILY = cirq.GateFamily(experimental_ops.CouplerPulse)
MEASUREMENT_GATE_FAMILY = cirq.GateFamily(cirq.MeasurementGate)
WAIT_GATE_FAMILY = cirq.GateFamily(cirq.WaitGate)
def _validate_device_specification(proto: v2.device_pb2.DeviceSpecification) -> None:
"""Raises a ValueError if the `DeviceSpecification` proto is invalid."""
qubit_set = set()
for q_name in proto.valid_qubits:
# Qubit names must be unique.
if q_name in qubit_set:
raise ValueError(
f"Invalid DeviceSpecification: valid_qubits contains duplicate qubit '{q_name}'."