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Quantum Chemistry
Qualitative features of the rearrangement of molecular energy spectra from a "wall-crossing" perspective
arXiv
Authors: Boris Zhilinskii, Toshihiro Iwai
Year
2013
Paper ID
33487
Status
Preprint
Abstract Read
~2 min
Abstract Words
77
Citations
N/A
Abstract
Qualitatively different systems of molecular energy bands are studied on example of a parametric family of effective Hamiltonians describing rotational structure of triply degenerate vibrational state of a cubic symmetry molecule. The modification of band structure under variation of control parameters is associated with a topological invariant "delta-Chern". This invariant is evaluated by using a local Hamiltonian for the control parameter values assigned at the boundary between adjacent parameter domains which correspond to qualitatively different band structures.
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- Qualitatively different systems of molecular energy bands are studied on example of a parametric family of effective Hamiltonians describing rotational structure of triply...
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