Dynamics of liquid He-4 in confined geometries from Time-Dependent Density Functional calculations

Details Dynamics of liquid He-4 in confined geometries from Time-Dependent Density Functional calculations Dynamics of liquid He-4 in confined geometries from Time-Dependent Density Functional calculations

2002-10-17

arxiv.org/abs/cond-mat/0210368v1

Physics

Condensed Matter

q 1 tex file + 9 Ps figures

Scientific paper

10.1103/PhysRevB.67.104501

We present numerical results obtained from Time-Dependent Density Functional calculations of the dynamics of liquid He-4 in different environments characterized by geometrical confinement. The time-dependent density profile and velocity field of He-4 are obtained by means of direct numerical integration of the non-linear Schrodinger equation associated with a phenomenological energy functional which describes accurately both the static and dynamic properties of bulk liquid He-4. Our implementation allows for a general solution in 3-D (i.e. no symmetries are assumed in order to simplify the calculations). We apply our method to study the real-time dynamics of pure and alkali-doped clusters, of a monolayer film on a weakly attractive surface and a nano-droplet spreading on a solid surface.

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