Ground states of one-dimensional dipolar lattice bosons at unit filling

authored by: Mateusz Łącki, Henning Korbmacher, Gustavo A. Domínguez-Castro, Jakub Zakrzewski, Luis Santos
Abstract: Recent experiments on ultracold dipoles in optical lattices open exciting possibilities for the quantum simulation of extended Hubbard models. When considered in one dimension, these models present at unit filling a particularly interesting ground-state physics, including a symmetry-protected topological phase known as Haldane insulator. We show that the tail of the dipolar interaction beyond nearest-neighbors, which may be tailored by means of the transversal confinement, does not only modify quantitatively the Haldane insulator regime and lead to density waves of larger periods, but results as well in unexpected insulating phases. These insulating phases may be topological or topologically trivial, and are characterized by peculiar correlations of the site occupations. These phases may be realized and observed in state-of-the-art experiments.
Organisation(s): Institute of Theoretical Physics
QuantumFrontiers
External Organisation(s): Jagiellonian University
Type: Article
Journal: Physical Review B
Volume: 109
No. of pages: 6
ISSN: 2469-9950
Publication date: 04.03.2024
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Electronic, Optical and Magnetic Materials, Condensed Matter Physics
Electronic version(s): https://doi.org/10.48550/arXiv.2311.14606 (Access: Open)
https://doi.org/10.1103/PhysRevB.109.125104 (Access: Closed)

BibTeX

@article{a9efac16b08442e285a2f1b946917913,
title = "Ground states of one-dimensional dipolar lattice bosons at unit filling",
abstract = "Recent experiments on ultracold dipoles in optical lattices open exciting possibilities for the quantum simulation of extended Hubbard models. When considered in one dimension, these models present at unit filling a particularly interesting ground-state physics, including a symmetry-protected topological phase known as Haldane insulator. We show that the tail of the dipolar interaction beyond nearest-neighbors, which may be tailored by means of the transversal confinement, does not only modify quantitatively the Haldane insulator regime and lead to density waves of larger periods, but results as well in unexpected insulating phases. These insulating phases may be topological or topologically trivial, and are characterized by peculiar correlations of the site occupations. These phases may be realized and observed in state-of-the-art experiments.",
author = "Mateusz {\L}{\c a}cki and Henning Korbmacher and Dom{\'i}nguez-Castro, {Gustavo A.} and Jakub Zakrzewski and Luis Santos",
note = "Funding Information: We acknowledge support from the National Science Centre (Poland) via Opus Grant No. 2019/35/B/ST2/00838 (M.{\L}.). This research was also funded by the National Science Centre (Poland) under the OPUS call within the WEAVE programme 2021/43/I/ST3/01142 (J.Z.), as well as by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—Project ID 274200144—SFB 1227 DQ-mat within the Project No. A04, FOR2247, and under Germany's Excellence Strategy—EXC-2123 Quantum-Frontiers—390837967. We gratefully acknowledge Poland's high-performance Infrastructure PLGrid (HPC Centers: ACK Cyfronet AGH, PCSS, CI TASK, WCSS) for providing computer facilities and support within computational Grant No. PLG/2022/015951. ",
year = "2024",
month = mar,
day = "4",
doi = "10.48550/arXiv.2311.14606",
language = "English",
volume = "109",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Institute of Physics",
number = "12",
}