From the 1 of 7 linked papers with an AI index.
7 papers
Tunable non-Hermitian skin effect and topological phases in ladders with staggered nonreciprocal inter-leg hopping
Pu-Xuan Li, Qi-Bo Zeng
The paper studies how staggered nonreciprocal hopping between the legs of a ladder composed of an SSH chain and a regular tight‑binding chain can control the non‑Hermitian skin eff…
Topological phase and its effective tuning in a ladder lattice
Qi-Bo Zeng
We study a two-leg ladder model consists of a one-dimensional (1D) Su-Schrieffer-Heeger (SSH) lattice with staggered nearest-neighboring hopping amplitudes and a normal 1D tight-bi…
Topological Anderson insulators and reentrant topological transitions in a quasiperiodic long-range Su-Schrieffer-Heeger model
Fang-Ming Meng, Qi-Bo Zeng
We study a one-dimensional long-range Su-Schrieffer-Heeger model with third-nearest-neighbor hopping and subject to quasiperiodic disorder. In the clean limit, the model hosts phas…
Coexistence of topological Anderson insulator and multifractal critical phase in a non-Hermitian quasicrystal
Qi-Bo Zeng, Rong Lü
The interplay of topology, disorder, and non-Hermiticity gives rise to phenomena beyond the conventional classification of quantum phases. We propose a one-dimensional non-Hermitia…
Topological superconducting phase in a non-Hermitian Kitaev chain with staggered pairing imbalance
Xiao-Jue Zhang, Rong Lü, Qi-Bo Zeng
We introduce a one-dimensional non-Hermitian Kitaev chain with staggered imbalance in the -wave superconducting pairing. By tuning the chemical potential and the pairing imbalan…
Majorana edge modes in one-dimensional Kitaev chain with staggered -wave superconducting pairing
Xiao-Jue Zhang, Rong Lü, Qi-Bo Zeng
We introduce a new type of one-dimensional Kitaev chain with staggered -wave superconducting pairing. We find three physical regimes in this model by tuning the -wave pairing…