scqubits.TunableTransmon.plot_matelem_vs_paramvals#

TunableTransmon.plot_matelem_vs_paramvals(operator, param_name, param_vals, select_elems=4, mode='abs', num_cpus=None, **kwargs)#

Generates a simple plot of a set of eigenvalues as a function of one parameter. The individual points correspond to the a provided array of parameter values.

Parameters:

  • operator (str) – name of class method in string form, returning operator matrix

  • param_name (str) – name of parameter to be varied

  • param_vals (ndarray) – parameter values to be plugged in

  • select_elems (Union[int, List[Tuple[int, int]]]) – either maximum index of desired matrix elements, or list [(i1, i2), (i3, i4), …] of index tuples for specific desired matrix elements (default value = 4)

  • mode (str) – idx_entry from MODE_FUNC_DICTIONARY, e.g., ‘abs’ for absolute value (default value = ‘abs’)

  • num_cpus (Optional[int]) – number of cores to be used for computation (default value: settings.NUM_CPUS)

  • **kwargs – standard plotting option (see separate documentation)

Return type:

Tuple[Figure, Axes]