English

Distinct reentrant transitions in a quasi-periodic Raman lattice

Disordered Systems and Neural Networks 2026-07-19 v1

Abstract

We investigate a one-dimensional lattice with spin-orbit coupling (SOC) and a Zeeman potential containing uniform and quasiperiodic components. By tuning SOC, anomalous mobility edges emerge that separate critical from non-critical states, yielding a reentrant transition between two mixed phases, M1_1\toM2_2\toM1_1, where M1_1 (M2_2) lacks (hosts) anomalous mobility edges. A new \emph{reentrant criticality transition}, defined as multiple entries into the critical phase, is identified. As a counterpart to reentrant delocalization/localization transitions, it completes the basic framework of reentrant phenomena across extended, localized, and critical states. The uniform Zeeman potential drives a reentrant delocalization transition, arising from the splitting of the localized region induced by the shift of mobility edges. This reveals a distinct pathway for reentrant phenomena beyond hybridization mechanisms.

Keywords

Cite

@article{arxiv.2607.17104,
  title  = {Distinct reentrant transitions in a quasi-periodic Raman lattice},
  author = {Xingbo Wei and Zhentian Xie and Tong Liu and Gao Xianlong and Yunbo Zhang},
  journal= {arXiv preprint arXiv:2607.17104},
  year   = {2026}
}

Comments

14 pages, 15 figures