  Binary neutron star mergers have been recently confirmed to be the
progenitors of the optical transients kilonovae (KNe). KNe are powered by the
radioactive decay of neutron-rich elements (r-process elements) which are
believed to be the product of disruption of neutron stars during their merger.
KNe exhibit interesting parallels with type Ia supernovae (SNe), whose light
curves show specific correlations which allow them to be used as standardizable
candles. In this paper, we investigate the possibility of the KN light curves
exhibiting similar correlations. While a satisfactory answer to this question
can only be provided by future KN observations, employing theoretical models we
explore whether there is any ground for harboring such expectations. Using
semi-analytic models of KN light curves in conjunction with results from
numerical relativity simulations of binary neutron star mergers, we obtain the
maximum bolometric luminosity ($L_{\mathrm{Bol}}^{\mathrm{max}}$) and decline
in luminosity ($\Delta L_{\mathrm{Bol}}$) for a simulated population of
mergers. We find that theoretical light curves of KNe show remarkable
correlations despite the complex physics governing their behavior. This
presents a possibility of future observations to uncover such correlations in
the observed light curves, eventually allowing observers to standardize these
light curves and to use them for local distance measurements.
