Droplet minimizers for the Cahn Hilliard free energy functional
  We prove theorem characterizing the minimizers in a model for condensation based on the Cahn Hilliard free energy functional. In particular, we exactly determine the critical density for droplet formation. 
E.A. Carlen, M.C. Carvalho, R. Esposito, J.L. Lebowitz, R. Marra