scqubits.TunableTransmon.get_spectrum_vs_paramvals#

TunableTransmon.get_spectrum_vs_paramvals(param_name, param_vals, evals_count=6, subtract_ground=False, get_eigenstates=False, filename=None, num_cpus=None)#

Calculates eigenvalues/eigenstates for a varying system parameter, given an array of parameter values. Returns a SpectrumData object with energy_data[n] containing eigenvalues calculated for parameter value param_vals[n].

Parameters:

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

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

  • evals_count (int) – number of desired eigenvalues (sorted from smallest to largest) (default value = 6)

  • subtract_ground (bool) – if True, eigenvalues are returned relative to the ground state eigenvalue (default value = False)

  • get_eigenstates (bool) – return eigenstates along with eigenvalues (default value = False)

  • filename (Optional[str]) – file name if direct output to disk is wanted

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

Return type:

SpectrumData