  The curvature dependence of interfacial free energy, which is crucial in
quantitatively predicting nucleation kinetics and the stability of bubbles and
droplets, can be described in terms of the Tolman length {\delta}. For
solid-liquid interfaces, however,{\delta} has never been computed directly due
to various theoretical and practical challenges. Here we present a general
method that enables the direct evaluation of the Tolman length from atomistic
simulations of a solid-liquid planar interface in out-of-equilibrium
conditions. This method works by first measuring the surface tension from the
amplitude of thermal capillary fluctuations of a localized version of Gibbs
dividing surface, and bythen computing the free energy difference between the
surface of tension and the equimolar dividing surface. For benchmark purposes,
we computed {\delta}for a model potential, and compared the results to less
rigorous indirect approaches.

Statistical Mechanics;Soft Condensed Matter