Ground-state entanglement of spin-1 bosons undergoing superexchange interactions in optical superlattices
Quantum Physics
2023-07-19 v1 Quantum Gases
Abstract
We discuss a model with ultra-cold atoms confined in optical superlattices. In particular, we study the ground-state properties of two spin-1 bosons trapped in a double-well potential. Depending on the external magnetic field and biquadratic interactions different phases of magnetic order are realized. Applying von Neumann entropy and number of relevant orbitals, we quantify the bipartite entanglement between particles. Changing the values of the parameters determining superlattices, we can switch the system between differently entangled states.
Keywords
Cite
@article{arxiv.1406.3756,
title = {Ground-state entanglement of spin-1 bosons undergoing superexchange interactions in optical superlattices},
author = {Artur Barasiński and Wiesław Leoński and Tomasz Sowiński},
journal= {arXiv preprint arXiv:1406.3756},
year = {2023}
}