Translational invariance in the theory of nucleationTranslational invariance in the theory of nucleation Πλήρης Δημοσίευση σε Συνέδριο Conference Full Paper 2015-11-122000enA connection between field-theoretic descriptions of condensation and density-functional theories of nucleation is established. The time-independent differential equation for the density profile of a liquid droplet that mediates the transition from liquid to gas phase is derived based on a variational principle. The droplet profile depends crucially on an attractive interaction term. A physically motivated form for the one-dimensional droplet profile is postulated, the droplet translational eigenmode for an infinite system is identified, and its contribution to the nucleation-rate prefactor is evaluated.http://creativecommons.org/licenses/by/4.0/15th International Conference on Nucleation and Atmospheric Aerosols, Lazaridis Michalis Λαζαριδης Μιχαλης Kevrekidis, Panayotis G Drossinos, Ioannis Georgopoulos,P.G American Institute of Physics Air--Pollution--Control Air contaminants Air pollutants Air pollution Air pollution control Air toxics Airborne pollutants Atmosphere--Pollution Contaminants, Air Control of air pollution Pollutants, Air Toxics, Air air pollution air pollution control air contaminants air pollutants air toxics airborne pollutants atmosphere pollution contaminants air control of air pollution pollutants air toxics air