# Mobility edges in off-diagonal disordered tight-binding models

@article{Liu2018MobilityEI, title={Mobility edges in off-diagonal disordered tight-binding models}, author={Tongqi Liu and Hao Guo}, journal={Physical Review B}, year={2018} }

We study one-dimensional tight-binding models with a slowly varying, incommensurate off-diagonal modulation on the hopping amplitude. Interestingly, we find that the mobility edges can appear only when the off-diagonal (hopping) disorder is included, which is different from the known results induced by the diagonal disorder. We further study the situation where the off-diagonal and diagonal disorder terms (the incommensurate potential) are both included and find that the locations of mobility…

## 6 Citations

Mobility edges in PT -symmetric cross-stitch flat band lattices

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The unavoidable exchange of the particles, energy and quantum information with surrounding environment forms the so-called open quantum systems. For some insightful considerations, the quantum…

Mobility edges in $\mathcal{PT}$-symmetric cross-stitch flat band lattices

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- 2021

The unavoidable exchange of the particles, energy and quantum information with surrounding environment forms the so-called open quantum systems. For some insightful considerations, the quantum…

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- PhysicsChinese Physics B
- 2021

In this paper, a one-dimensional non-Hermitian quasiperiodic p-wave superconductor without PT -symmetry is studied. By analyzing the spectrum, we discovered there still exists real-complex energy…

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- PhysicsAnnalen der Physik
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- Medicine, PhysicsJournal of physics. Condensed matter : an Institute of Physics journal
- 2021

It is found that the quasi-periodic disordered models can be approximated by an ensemble of periodic models and an index is proposed to indicate the degree of localization of each eigenstate.

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