qspec.models.LorentzQI  (  )[source]

A Lorentzian peak function of the form $$ f(x, \Gamma) = \frac{\Gamma^2}{(2x)^2 + \Gamma^2}. $$ A dispersive term for consideration of quantum interference (QI) effects is available through evaluate_qi $$ f(x, x_\mathrm{qi}, \Gamma) = \mathrm{Re}\left[\frac{\Gamma^2} {(2x + i\Gamma)(2(x - x_\mathrm{qi}) - i\Gamma)}\right]. $$ This model needs to be implemented in another model that combines evaluate with evaluate_qi, see HyperfineQI.