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Effect of positive background on the ground‐state energy of a Wigner lattice
Author(s) -
Sebasdiyar I.,
Iyakutti K.,
Mahendran M.
Publication year - 1993
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560470302
Subject(s) - ground state , yukawa potential , physics , gaussian , lattice (music) , condensed matter physics , lattice constant , wigner distribution function , quantum mechanics , quantum electrodynamics , quantum , diffraction , acoustics
An attempt has been made to study the effect of a nonuniform positive background on the ground‐state energy of a nonmagnetic Wigner lattice. The background is modified with a variable “ripple” parameter in the background charge, represented by a Yukawa‐type charge distribution. Our calculation shows that a Yukawa‐type background leads to a lower ground‐state energy value compared to a Gaussian‐type and constant positive background. © 1993 John Wiley & Sons, Inc.