Details
| Original language | English |
|---|---|
| Article number | 013315 |
| Journal | Physical Review A |
| Volume | 104 |
| Issue number | 1 |
| Publication status | Published - 22 Jul 2021 |
Abstract
The interplay between interparticle interactions and topological features may result in unusual phenomena. Interestingly, interactions may induce topological features in an originally trivial system, as we illustrate for the case of a one-dimensional two-component Hubbard model in which one component is subjected to Su-Schrieffer-Heeger dimerization, whereas the other one is not. We show that due to intercomponent interactions the topological properties of one component are induced in the originally trivial one. Although for large interactions topological inheritance may be readily explained by on-site pairing, we show that the threshold for full inheritance occurs at weak interactions, for which the components are not yet paired. We illustrate this inheritance by discussing both bulk and edge properties, as well as dynamical observables as mean chiral displacement and charge pumping.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: Physical Review A, Vol. 104, No. 1, 013315, 22.07.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Topological inheritance in two-component Hubbard models with single-component Su-Schrieffer-Heeger dimerization
AU - Mondal, Suman
AU - Greschner, Sebastian
AU - Santos, Luis
AU - Mishra, Tapan
N1 - Funding Information: Department of Science and Technology, Ministry of Science and Technology Schweizerischer Nationalfonds zur F?rderung der Wissenschaftlichen Forschung Deutsche Forschungsgemeinschaft The computational simulations were carried out using the Param-Ishan HPC facility at Indian Institute of Technology - Guwahati, India. S.G. acknowledges support by the Swiss National Science Foundation under Division II. T.M. acknowledges DST-SERB, India for the early career grant through Project No. ECR/2017/001069. L.S. acknowledges support of the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy – EXC-2123 QuantumFrontiers – 390837967.
PY - 2021/7/22
Y1 - 2021/7/22
N2 - The interplay between interparticle interactions and topological features may result in unusual phenomena. Interestingly, interactions may induce topological features in an originally trivial system, as we illustrate for the case of a one-dimensional two-component Hubbard model in which one component is subjected to Su-Schrieffer-Heeger dimerization, whereas the other one is not. We show that due to intercomponent interactions the topological properties of one component are induced in the originally trivial one. Although for large interactions topological inheritance may be readily explained by on-site pairing, we show that the threshold for full inheritance occurs at weak interactions, for which the components are not yet paired. We illustrate this inheritance by discussing both bulk and edge properties, as well as dynamical observables as mean chiral displacement and charge pumping.
AB - The interplay between interparticle interactions and topological features may result in unusual phenomena. Interestingly, interactions may induce topological features in an originally trivial system, as we illustrate for the case of a one-dimensional two-component Hubbard model in which one component is subjected to Su-Schrieffer-Heeger dimerization, whereas the other one is not. We show that due to intercomponent interactions the topological properties of one component are induced in the originally trivial one. Although for large interactions topological inheritance may be readily explained by on-site pairing, we show that the threshold for full inheritance occurs at weak interactions, for which the components are not yet paired. We illustrate this inheritance by discussing both bulk and edge properties, as well as dynamical observables as mean chiral displacement and charge pumping.
UR - http://www.scopus.com/inward/record.url?scp=85111658453&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.104.013315
DO - 10.1103/PhysRevA.104.013315
M3 - Article
AN - SCOPUS:85111658453
VL - 104
JO - Physical Review A
JF - Physical Review A
SN - 2469-9926
IS - 1
M1 - 013315
ER -