6533b828fe1ef96bd1287a70

RESEARCH PRODUCT

Density functional study of two-dimensionalHe4clusters

Jesús NavarroArtur PollsA. SarsaJordi Mur-petit

subject

Quantum fluidOrbital-free density functional theoryBinding energyMonte Carlo methodFOS: Physical sciencesLambdaHeli líquidMolecular physicsQuantum fluidsMètode de MontecarloLiquid heliumPhysicsLíquids quànticsFísicaTeoria del funcional de densitatCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsCondensed Matter - Other Condensed MatterMonte Carlo methodDensity functional theoryPhysical chemistryDiffusion Monte CarloDensity functional theoryEnergy (signal processing)Other Condensed Matter (cond-mat.other)

description

Binding energies and density profiles of two-dimensional systems of liquid He-4 with different geometries are studied by means of a zero-range density functional adjusted to reproduce the line tension obtained in a previous diffusion Monte Carlo calculation (lambda_{DMC}=0.121 K/A). It is shown that this density functional provides accurate results for the binding energy of large clusters with a reasonable computational effort.

https://doi.org/10.1103/physrevb.72.104513