Details
| Original language | English |
|---|---|
| Publication status | E-pub ahead of print - 17 Aug 2020 |
Abstract
Keywords
- cond-mat.quant-gas, cond-mat.other
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2020.
Research output: Working paper/Preprint › Preprint
}
TY - UNPB
T1 - Topological inheritance in half-SSH Hubbard models
AU - Mondal, Suman
AU - Greschner, Sebastian
AU - Santos, Luis
AU - Mishra, Tapan
N1 - 5 pages, 5 figures
PY - 2020/8/17
Y1 - 2020/8/17
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(SSH) dimerization, whereas the other one is not. We show that due to inter-component 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(SSH) dimerization, whereas the other one is not. We show that due to inter-component 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.
KW - cond-mat.quant-gas
KW - cond-mat.other
M3 - Preprint
BT - Topological inheritance in half-SSH Hubbard models
ER -