qat.purr.backends.live module

class LiveDeviceEngine(model, startup_engine=True)

Bases: QuantumExecutionEngine

Backend that hooks up to our QPU’s, currently hardcoded to particular fridges. This will only work when run on a machine physically connected to a QPU.

build_baseband_frequencies(pulse_channel_buffers): Find fixed intermediate frequencies for physical channels if they exist.

model: LiveHardwareModel

optimize(instructions): Runs optimization passes specific to this hardware.

process_reset(position)

shutdown(): Shuts down the underlying hardware when this instance is no longer in use.

startup(): Starts up the underlying hardware or does nothing if already started.

validate(instructions): Validates this graph for execution on the current hardware.

class LiveHardwareModel(control_hardware=None, shot_limit=10000, acquire_mode=None, repeat_count=1000, repetition_period=0.0001, error_mitigation=None)

Bases: QuantumHardwareModel

add_device(device)

add_instrument(*instruments)

add_physical_baseband(*basebands)

add_physical_channel(*physical_channels)

create_engine(startup_engine=True)

get_device(id_)

get_instrument(id_)

apply_setup_to_hardware(hw, qubit_count, pulse_hw_x_pi_2_width, pulse_hw_zx_pi_4_width, pulse_measure_width)

Apply lucy to the passed-in hardware.

Return type:: QuantumHardwareModel

build_lucy_hardware(hw)

sync_baseband_frequencies_to_value(hw, lo_freq, target_qubits)