Quantum integrability of 1D ionic Hubbard model

A Hosseinzadeh, SA Jafari - Annalen der Physik, 2020 - Wiley Online Library
The quantum integrability of the 1D ionic Hubbard model (IHM) is established using two
independent numerical methods, namely i) energy level spacing statistics and ii) occupation …

Generalization of Lieb–Wu wave function inspired by one-dimensional ionic Hubbard model

A Hosseinzadeh, SA Jafari - Annals of Physics, 2020 - Elsevier
With the ionic Hubbard model (IHM) in mind, we construct a non-trivial generalization of the
Bethe ansatz (BA) wave function which naturally generalizes the Lieb–Wu wave function …