van der Waals Interactions between Thin Metallic Wires and Layers

N. D. Drummond and R. J. Needs
Phys. Rev. Lett. 99, 166401 – Published 16 October 2007

Abstract

Quantum Monte Carlo (QMC) methods have been used to obtain accurate binding-energy data for pairs of parallel thin metallic wires and layers modeled by 1D and 2D homogeneous electron gases. We compare our QMC binding energies with results obtained within the random phase approximation, finding significant quantitative differences and disagreement over the asymptotic behavior for bilayers at low densities. We have calculated pair-correlation functions for metallic biwire and bilayer systems. Our QMC data could be used to investigate van der Waals energy functionals.

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  • Received 30 May 2007

DOI:https://doi.org/10.1103/PhysRevLett.99.166401

©2007 American Physical Society

Authors & Affiliations

N. D. Drummond and R. J. Needs

  • TCM Group, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom

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Issue

Vol. 99, Iss. 16 — 19 October 2007

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