Ground-state energy of a classical artificial molecule
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Data
2008
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Resumo
We study the ground-state energy of a classical artificial molecule formed by two-dimensional
clusters (artificial atoms) of N/2 charged particles separated by a distance d. For the small molecules
of N = 2 and 4, we obtain analytical expressions for this energy. For the larger ones, we calculate the
ground-state energy using molecular dynamics simulation for N up to 128. From our numerical results, we
are able to find out a function to approximate the ground-state energy of the molecules covering the range
from atoms to molecules for any inter-atom distance d and for particle number from N = 8 to 128 within
a difference less than one percent from the MD data.
Descrição
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Molecular dynamics, Particle methods, Quantum dots, Theories of many-electron systems, Models of many-electron systems
Citação
CÂNDIDO, L.; FONSECA, T. L.; RABELO, J. N. Teixeira; G.-Q., Hai. Ground-state energy of a classical artificial molecule. The European Physical Journal. B, Les Ulis, v. 64, p. 81-86, 2008.