scqubits.utils.spectrum_utils.absorption_spectrum#
- scqubits.utils.spectrum_utils.absorption_spectrum(spectrum_data)[source]#
Takes spectral data of energy eigenvalues and returns the absorption spectrum relative to a state of given index. Calculated by subtracting from eigenenergies the energy of the select state. Resulting negative frequencies, if the reference state is not the ground state, are omitted.
- Return type:
- Parameters:
spectrum_data (SpectrumData) –