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quant-ph2023
First-order Quantum Phase Transitions and Localization in the 2D Haldane Model with Non-Hermitian Quasicrystal Boundaries
Xianqi Tong, Su-Peng Kou
The non-Hermitian extension of quasicrystals (QC) are highly tunable system for exploring novel material phases. While extended-localized phase transitions have been observed in on…
quant-ph2022★ 6 cited
Adiabatic-impulse approximation in non-Hermitian Landau-Zener Model
Xianqi Tong, Gao Xianlong, Su-peng Kou
We investigate the transition from PT-symmetry to PT-symmetry breaking and vice versa in the non-Hermitian Landau-Zener (LZ) models. The energy is generally complex, so the relaxat…