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Search for tunnelling centres in Lennard-Jones clusters

G. Daldoss·O. Pilla·G. Viliani
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Abstract

We report on numerical procedures for, and preliminary results on the search for, tunnelling centres in Lennard-Jones clusters, seen as simple model systems of glasses. Several of the double-well potentials identified are good candidates to give rise to two-level systems. The role of boundary effects, and the application of the semiclassical WKB approximation in multidimensional spaces for the calculation of the ground state splitting are discussed.

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G. Daldoss, O. Pilla, G. Viliani. 1997-10-06. Search for tunnelling centres in Lennard-Jones clusters. https://arxiv.org/abs/cond-mat/9710057

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