Rights statement: © 2007 The American Physical Society
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - van der Waals Interactions between Thin Metallic Wires and Layers
AU - Drummond, Neil
AU - Needs, R. J.
N1 - © 2007 The American Physical Society
PY - 2007/10/16
Y1 - 2007/10/16
N2 - 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.
AB - 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.
U2 - 10.1103/PhysRevLett.99.166401
DO - 10.1103/PhysRevLett.99.166401
M3 - Journal article
VL - 99
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 16
M1 - 166401
ER -