Effects of disorder on the correlation energy of rings of hydrogen atoms |
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| Authors: | C-M Liegener J Ladik |
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| Institution: | Chair for Theoretical Chemistry, Friedrich-Alexander-University Erlangen-Nürnberg, Egerlandstrasse 3, D-8520 Erlangen, West Germany |
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| Abstract: | The correlation energy of disordered systems has been calculated by means of second-order Rayleigh-Schrödinger perturbation theory in the M?ller-Plesset partitioning. Rings of hydrogen atoms have been chosen as model systems and the degree of disorder has been varied from complete delocalization to complete localization of the one-particle states. The correlation energy was found to have an extremum at an intermediate degree of disorder, corresponding to incomplete localization. |
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