Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 033619 |
| Seitenumfang | 12 |
| Fachzeitschrift | Physical Review A |
| Jahrgang | 97 |
| Ausgabenummer | 3 |
| Publikationsstatus | Veröffentlicht - März 2018 |
Abstract
We study the ground-state physics of a single-component Haldane model on a hexagonal two-leg ladder geometry with a particular focus on strongly interacting bosonic particles. We concentrate our analysis on the regime of less than one particle per unit cell. As a main result, we observe several Meissner-like and vortex-fluid phases, both for a superfluid as well as a Mott-insulating background. Furthermore, we show that for strongly interacting bosonic particles, an unconventional vortex-lattice phase emerges, which is stable even in the regime of hard-core bosons. We discuss the mechanism for its stabilization for finite interactions by a means of an analytical approximation. We show how the different phases may be discerned by measuring the nearest- and next-nearest-neighbor chiral currents as well as their characteristic momentum distributions.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Atom- und Molekularphysik sowie Optik
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in: Physical Review A, Jahrgang 97, Nr. 3, 033619, 03.2018.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Quantum phases of strongly interacting bosons on a two-leg Haldane ladder
AU - Greschner, S.
AU - Heidrich-Meisner, F.
N1 - Publisher Copyright: © 2018 American Physical Society.
PY - 2018/3
Y1 - 2018/3
N2 - We study the ground-state physics of a single-component Haldane model on a hexagonal two-leg ladder geometry with a particular focus on strongly interacting bosonic particles. We concentrate our analysis on the regime of less than one particle per unit cell. As a main result, we observe several Meissner-like and vortex-fluid phases, both for a superfluid as well as a Mott-insulating background. Furthermore, we show that for strongly interacting bosonic particles, an unconventional vortex-lattice phase emerges, which is stable even in the regime of hard-core bosons. We discuss the mechanism for its stabilization for finite interactions by a means of an analytical approximation. We show how the different phases may be discerned by measuring the nearest- and next-nearest-neighbor chiral currents as well as their characteristic momentum distributions.
AB - We study the ground-state physics of a single-component Haldane model on a hexagonal two-leg ladder geometry with a particular focus on strongly interacting bosonic particles. We concentrate our analysis on the regime of less than one particle per unit cell. As a main result, we observe several Meissner-like and vortex-fluid phases, both for a superfluid as well as a Mott-insulating background. Furthermore, we show that for strongly interacting bosonic particles, an unconventional vortex-lattice phase emerges, which is stable even in the regime of hard-core bosons. We discuss the mechanism for its stabilization for finite interactions by a means of an analytical approximation. We show how the different phases may be discerned by measuring the nearest- and next-nearest-neighbor chiral currents as well as their characteristic momentum distributions.
UR - http://www.scopus.com/inward/record.url?scp=85044422279&partnerID=8YFLogxK
U2 - 10.48550/arXiv.1710.08109
DO - 10.48550/arXiv.1710.08109
M3 - Article
AN - SCOPUS:85044422279
VL - 97
JO - Physical Review A
JF - Physical Review A
SN - 2469-9926
IS - 3
M1 - 033619
ER -