Here we experimentally demonstrate a triple phase transition, where a topological phase transition, a mobility phase transition and spontaneous PT-symmetry breaking coincide (Fig. 1). We consider a non-Hermitian Floquet quasicrystal with PT symmetry, supporting the non-Hermitian skin effect11,32,33,...
The physics is manifested in a temporally driven (Floquet) dissipative quasicrystal. We implement our ideas via photonic quantum walks in coupled optical fibre loops. Our study highlights the intertwinement of topology, symmetry breaking and mobility phase transitions in non-Hermitian quasicrystalline ...
Phase transitions in the symmetry of non-Hermitian systems describe the transition to on-average conserved energyand new topological phases. Bulk conductivity, topology and non-Hermitian symmetry breaking seemingly emerge from different physics and, thus, may appear as separable phenomena. However, in ...
Zhou, L.: Dynamical characterization of non-hermitian floquet topological phases in one dimension. Phys. Rev. B 100, 184314 (2019) Article ADS Google Scholar Li, C.F., Luan, L.N., Wang, L.C.: Topological properties of an extend su-schrieffer-heeger model under periodic kickings. Int...
Triple phase transition, including topological phase transition, mobility phase transition and spontaneous PT-symmetry breaking, can be realized in a non-Hermitian Floquet quasicrystal with PT symmetry. The quasicrystal can be implemented in an optical system with controllable dissipation, consisting of cou...
Non-Hermitian topological phase transitions controlled by nonlinearity Article 23 October 2023 Thermal control of the topological edge flow in nonlinear photonic lattices Article Open access 29 July 2022 Introduction Topological photonics has become one of the most active research frontiers in optics ...
As a confirmation of the non-Hermitian bulk-boundary correspondence, we show that the emergence of topological edge states are consistent with Floquet ... T Li,YS Zhang,W Yi - 中国物理快报:英文版 被引量: 0发表: 2021年 Non-Hermitian extensions of higher-order topological phases and their bio...
We show that, similar to the Hermitian case, spatial symmetries will also lead to a shift in the classification of AZ and AZ^$$ classes. There also exist novel symmetry protected topological phases exclusive to point gapped non Hermitian Hamiltonians. Toy models are also given based on our ...
Fractional Quantum Zeno Effect Emerging from Non-Hermitian Physics | 复旦理论物理报告会 开始时间 2023-10-13 09:30 题目:Fractional Quantum Zeno Effect Emerging from Non-Hermitian Physics | 复旦理论物理报告会 报告人:胡颖 教授 山西大学 时间:2023年10月13日(周五)9:30 主办方:复旦大学物理系 报告摘要...
The discovery of non-Hermitian skin effect (NHSE) has opened an exciting direction for unveiling unusual physics and phenomena in non-Hermitian system. Despite notable theoretical breakthroughs, actual observation of NHSE’s whole evolvement, however, relies mainly on gain medium to provide amplified ...