We discuss how to locate critical points in the Berezinskii-Kosterlitz-Thouless (BKT) universality class by means of gap-scaling analyses. While accurately determining such …
We consider two-component one-dimensional quantum gases at special imbalanced commensurabilities which lead to the formation of multimer (multiparticle bound-states) as …
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 …
We numerically determine the very rich phase diagram of mass-imbalanced binary mixtures of hardcore bosons (or equivalently—fermions, or hardcore Bose/Fermi mixtures) loaded in …
E Szirmai, G Barcza, J Sólyom, Ö Legeza - Physical Review A, 2017 - APS
We investigate the spin-polarized chain of ultracold alkaline-earth-metal atoms with spin-3/2 described by the fermionic Hubbard model with SU (4) symmetric attractive interaction. The …
L Taddia - arXiv preprint arXiv:1309.4003, 2013 - arxiv.org
Entanglement entropies have revealed, in the last years, to be a powerful tool to extract information about the physics of condensed-matter systems. In the first part of this thesis, we …
I Grusha, M Menteshashvili… - International Journal of …, 2016 - World Scientific
We derive an effective spin Hamiltonian for the one-dimensional half-filled asymmetric ionic Hubbard model (IHM) with alternating on-site interaction in the limit of strong repulsion. It is …
S Longhi, G Della Valle - Physical Review A—Atomic, Molecular, and Optical …, 2013 - APS
The hopping dynamics of two fermionic species with different effective masses in the one- dimensional Hubbard model driven by an external field are theoretically investigated. A …
A Snyder, I Tanabe, T De Silva - Physical Review A—Atomic, Molecular, and …, 2011 - APS
We calculate several thermodynamic quantities for repulsively interacting one-dimensional fermions. We solve the Hubbard model at both zero and finite temperatures using the Bethe …