LOManalysis

class LOManalysis(design: Optional[qiskit_metal.designs.design_base.QDesign] = None, renderer_name: Optional[str] = None)

Performs Lumped Oscillator Model analysis on a simulated or user-provided capacitance matrix.

Default Setup:

• junctions (Dict)

  • Lj (float): Junction inductance (in nH)

  • Cj (float): Junction capacitance (in fF)

• freq_readout (float): Coupling readout frequency (in GHz).

• freq_bus (Union[list, float]): Coupling bus frequencies (in GHz).

  • freq_bus can be a list with the order they appear in the capMatrix.

Data Labels:

• lumped_oscillator (pd.DataFrame): Lumped oscillator result at the last simulation pass

• lumped_oscillator_all (dict): of pd.DataFrame. Lumped oscillator resulting

  at every pass of the simulation

Initialize the Lumped Oscillator Model analysis.

Parameters

• design (QDesign) – Pointer to the main qiskit-metal design. Used to access the QRenderer. Defaults to None.

• renderer_name (str, optional) – Which renderer to use. Valid entries: ‘q3d’. Defaults to None.

Attributes

LOManalysis.data_labels	Default data labels.
LOManalysis.default_setup	Default setup.
LOManalysis.logger	Returns the logger.
LOManalysis.lumped_oscillator	Getter
LOManalysis.lumped_oscillator_all	Getter
LOManalysis.setup	Dictionary intended to be used to modify the analysis behavior.
LOManalysis.supported_data	Set that contains the names of the variables supported from the analysis.

Methods

LOManalysis.clear_data([data_name])	Clear data.
LOManalysis.get_data([data_name])	Retrieves the analysis module data.
LOManalysis.get_data_labels()	Retrieves the list of data labels currently set.
LOManalysis.load_simulation_data(data_name, data)	Load simulation data for the following analysis.
LOManalysis.plot_convergence(*args, **kwargs)	Plots alpha and frequency versus pass number, as well as convergence of delta (in %).
LOManalysis.plot_convergence_chi(*args, **kwargs)	Plot convergence of chi and g, both in MHz, as a function of pass number.
LOManalysis.print_run_args()	Prints the args and kwargs that were used in the last run() of this Analysis instance.
LOManalysis.run(*args, **kwargs)	Executes sequentially the system capacitance simulation (if a renderer was provided at creation of this object) and lom extraction by executing the methods LumpedElementsSim.run_sim(*args, **kwargs) and LOManalysis.run_lom().
LOManalysis.run_lom()	Executes the lumped oscillator extraction from the capacitance matrix, and based on the setup values.
LOManalysis.run_sweep(*args, **kwargs)	User requests sweeper based on arguments from Sweeper.run_sweep().
LOManalysis.save_run_args(**kwargs)	Intended to be used to store the kwargs passed to the run() method, for repeatability and for later identification of the QAnalysis instance.
LOManalysis.set_data(data_name, data)	Stores data in a structure for later retrieval.
LOManalysis.setup_update([section])	Intended to modify multiple setup settings at once, while retaining previous settings.