Transversal effects on the ground state of hard-core dipolar bosons in one-dimensional optical lattices

verfasst von: Henning Korbmacher, Gustavo A. Domínguez-Castro, Wei Han Li, Jakub Zakrzewski, Luis Santos
Abstract: Polar lattice gases are usually assumed to have an intersite interaction that decays with the interparticle distance r as 1/r3. However, a loose-enough transversal confinement may strongly modify the dipolar decay in one-dimensional lattices. We show that this modification alters significantly the ground-state properties of hard-core dipolar bosons. For repulsive intersite interactions, the corrected decay alters the conditions for devil's staircase insulators, affecting significantly the particle distribution in the presence of an overall harmonic confinement. For attractive interactions, it results in a reduction of the critical dipole interaction for the formation of self-bound clusters, and for a marked enhancement of the region of liquefied lattice droplets.
Organisationseinheit(en): Institut für Theoretische Physik
SFB 1227: Designte Quantenzustände der Materie (DQ-mat)
Externe Organisation(en): Max-Planck-Institut für Physik komplexer Systeme
Jagiellonian University
Typ: Artikel
Journal: Physical Review A
Band: 107
ISSN: 2469-9926
Publikationsdatum: 14.06.2023
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Atom- und Molekularphysik sowie Optik
Elektronische Version(en): https://doi.org/10.48550/arXiv.2303.07217 (Zugang: Offen)
https://doi.org/10.1103/PhysRevA.107.063307 (Zugang: Geschlossen)

BibTeX

@article{e9bb1dda90c142aca4d5163aad129447,
title = "Transversal effects on the ground state of hard-core dipolar bosons in one-dimensional optical lattices",
abstract = "Polar lattice gases are usually assumed to have an intersite interaction that decays with the interparticle distance r as 1/r3. However, a loose-enough transversal confinement may strongly modify the dipolar decay in one-dimensional lattices. We show that this modification alters significantly the ground-state properties of hard-core dipolar bosons. For repulsive intersite interactions, the corrected decay alters the conditions for devil's staircase insulators, affecting significantly the particle distribution in the presence of an overall harmonic confinement. For attractive interactions, it results in a reduction of the critical dipole interaction for the formation of self-bound clusters, and for a marked enhancement of the region of liquefied lattice droplets.",
author = "Henning Korbmacher and Dom{\'i}nguez-Castro, {Gustavo A.} and Li, {Wei Han} and Jakub Zakrzewski and Luis Santos",
note = "Funding Information: We acknowledge support of the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—Project No. 274200144—SFB 1227 DQ-mat within Project No. A04 and under Germany's Excellence Strategy—EXC-2123 Quantum-Frontiers—Grant No. 390837967. J.Z. is supported by the National Science Centre (Poland) under Project No. 2021/43/I/ST3/01142 founded in the OPUS call within the WEAVE programme. ",
year = "2023",
month = jun,
day = "14",
doi = "10.48550/arXiv.2303.07217",
language = "English",
volume = "107",
journal = "Physical Review A",
issn = "2469-9926",
publisher = "American Physical Society",
number = "6",
}