Struttura della materia

Extremely Confined Fluids: Thermodynamics and Dynamic

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

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

Aula Conversi

Dipartimento di Fisica - Ed. G.Marconi

Description
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.

 

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Cristiano De Michele