English

Exactly solvable 1D model explains the low-energy vibrational level structure of protonated methane

Chemical Physics 2021-03-30 v2 Quantum Physics

Abstract

A new one-dimensional model is proposed for the low-energy vibrational quantum dynamics of CH5+ based on the motion of an effective particle confined to a 60-vertex graph Γ60{\Gamma}_{60} with a single edge length parameter. Within this model, the quantum states of CH5+ are obtained in analytic form and are related to combinatorial properties of Γ60{\Gamma}_{60}. The bipartite structure of Γ60{\Gamma}_{60} gives a simple explanation for curious symmetries observed in numerically exact variational calculations on CH5+.

Keywords

Cite

@article{arxiv.2102.06424,
  title  = {Exactly solvable 1D model explains the low-energy vibrational level structure of protonated methane},
  author = {Jonathan I. Rawlinson and Csaba Fábri and Attila G. Császár},
  journal= {arXiv preprint arXiv:2102.06424},
  year   = {2021}
}