Extremely Confined Fluids: Thermodynamics and Dynamic

by Rolf Shilling (Johannes Gutenberg University, Mainz, Germany)

Tuesday 7 May 2019, 16:00 → 18:00 Europe/Rome

Aula Conversi (Dipartimento di Fisica - Ed. G.Marconi)

We will show that extreme confinement of fluids has

significant consequences. First, thermodynamic properties follow from a

lower-dimensional fluid with renormalized interactions. This implies, e.g.,

that a phase transition point shifts proportional to the square of the

confinement length. Second, the equation of state, the density profile,

etc. can be obtained by a thermodynamic perturbation theory. Third, the

equilibration of the fluid slows down. The relaxation times exhibit

power-law divergence with exponents which differ from those expected from

van Hoveâ s work on equilibration. Molecular dynamic calculations will be

presented confirming the predicted exponents.