On the degeneracy of ordered ground state configurations of the aspherical Gaussian core model
| Autor: | Gerhard Kahl, Markus Weißenhofer, Davide Pini |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Gaussian potential 010304 chemical physics Gaussian Degenerate energy levels FOS: Physical sciences General Physics and Astronomy Condensed Matter - Soft Condensed Matter 010402 general chemistry 01 natural sciences Ellipsoid 0104 chemical sciences symbols.namesake Liquid crystal Quantum mechanics Lattice (order) 0103 physical sciences symbols Soft Condensed Matter (cond-mat.soft) Physical and Theoretical Chemistry Core model Ground state |
| Zdroj: | The Journal of Chemical Physics. 153:164901 |
| ISSN: | 1089-7690 0021-9606 |
| DOI: | 10.1063/5.0023749 |
| Popis: | We provide rigorous evidence that the ordered ground state configurations of a system of parallel oriented, ellipsoidal particles, interacting via a Gaussian interaction (termed in literature as Gaussian core nematics) {\it must} be infinitely degenerate: we have demonstrated that these configurations originate from the related ground state configuration of the corresponding symmetric Gaussian core system via a suitable stretching operation of this lattice in combination with an arbitrary rotation. These findings explain related observations in former investigations, which then remained unexplained. Our conclusions have far reaching consequences for the search of ground state configurations of other nematic particles. |
| Databáze: | OpenAIRE |
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