Details
| Original language | English |
|---|---|
| Article number | 033619 |
| Number of pages | 12 |
| Journal | Physical Review A |
| Volume | 97 |
| Issue number | 3 |
| Publication status | Published - Mar 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 subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Physical Review A, Vol. 97, No. 3, 033619, 03.2018.
Research output: Contribution to journal › Article › Research › 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 -