RT info:eu-repo/semantics/article
T1 Hidden sl(2)-symmetry of the generalized Landau–Zener vibronic model
A1 Nieto Calzada, Luis Miguel
A1 Zarrinkamar, Saber
K1 Vibronic model
K1 Two-level system
K1 Exceptional energy
K1 Fourth-order differential equation
K1 Hidden sl(2) symmetry
K1 22 Física
AB The one-dimensional harmonic vibronic model, which is a generalization of the so-called linear Landau–Zener model and appears in the form of coupled Schrödinger equations, is revisited. After decoupling the components, the resulting fourth-order equation is shown to have a hidden 𝑠𝑙(2) algebra. The so-called exceptional part of the spectrum is then expressed in a rather simple way. For completeness, the eigenfunctions are obtained via the Bethe ansatz approach directly in position space
PB Elsevier
SN 0003-4916
YR 2025
FD 2025
LK https://uvadoc.uva.es/handle/10324/78329
UL https://uvadoc.uva.es/handle/10324/78329
LA eng
NO Annals of Physics, 2025, vol. 480, p. 170126
NO Producción Científica
DS UVaDOC
RD 18-dic-2025