title: Dimensional crossover in fluids under nanometer-scale confinement.
abstract: Several earlier studies have shown signatures of crossover in various static and dynamics properties of a confined fluid when the confining dimension decreases to about a nanometer. The density fluctuations govern the majority of such properties of a fluid. Here, we illustrate the crossover in density fluctuation in a confined fluid, to provide a generic understanding of confinement-induced crossover of fluid properties, using computer simulations. The crossover can be understood as a manifestation of changes in the long-wavelength behavior of fluctuation in density due to geometrical constraints. We further show that the confining potential significantly affects the crossover behavior.
authors.affiliation: Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata-700 098, India. amitsearch@bose.res.in
authors.forename: Amit
authors.initials: A
authors.lastname: Das
authors.forename: J
authors.initials: J
authors.lastname: Chakrabarti
mesh_terms: D003198:Computer Simulation; D057446:Hydrodynamics; D036103:Nanotechnology