Mass-imbalanced ionic Hubbard chain
M Sekania, D Baeriswyl, L Jibuti, GI Japaridze - Physical Review B, 2017 - APS
A repulsive Hubbard model with both spin-asymmetric hopping (t↑≠ t↓) and a staggered
potential (of strength Δ) is studied in one dimension. The model is a compound of the mass …
potential (of strength Δ) is studied in one dimension. The model is a compound of the mass …
Exact diagonalization and quantum Monte Carlo study of an ionic Hubbard model in two dimensions
J Cho, JW Lee - Journal of the Korean Physical Society, 2017 - Springer
We study quantum phase transitions of an ionic Hubbard model in two dimensions. The
ionic Hubbard model explains the quantum states of strongly correlated electrons under the …
ionic Hubbard model explains the quantum states of strongly correlated electrons under the …