def reset(self, T):
        r"""Recalculate the doppler broadening for a given temperature."""
        self.__init__(self.shape, self.stds, T,
                      self.mass, self.detuning_knob, self.k,
                      self.omega_level, self.xi, self.theta, self.unfolding,
                      self.axes,
                      self.matrix_form)