Phys. Rev. Lett. 99, 166401 (2007) [4 pages]van der Waals Interactions between Thin Metallic Wires and LayersReceived 30 May 2007; published 16 October 2007 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. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.99.166401
DOI:
10.1103/PhysRevLett.99.166401
PACS:
71.10.−w, 02.70.Ss, 73.20.−r, 73.21.Hb
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