Topological phases are enriched in non-equilibrium open systems effectively described by non-Hermitian Hamiltonians. While several properties unique to non-Hermitian topological systems were uncovered, the fundamental role of symmetry in non-Hermitian physics has yet to be fully understood, and it has ...
Non-Hermitian topology plays a pivotal role in physical science and technology, exerting a profound impact across various scientific disciplines. Recently, the interplay between topological physics and nonlinear synchronization has aroused a great intere
Fractional Quantum Zeno Effect Emerging from Non-Hermitian Physics 3153 01:23:00 Impart orientations to topological line defects from non-Abelian and non-Hermitian band nodes to optical polarization singularities 3054 01:32:00 Unified direct parameter estimation via quantum reservoirs ...
non‐Hermitian topological phase transitionsThe topological properties of a generalized non〩ermitian Su–Schrieffer–Heeger model are investigated and it is demonstrated that the non〩ermitian phase transition and the non〩ermitian skin effect can be induced by intraヽell asymmetric coupling under open...
Non-Hermitian topological photonics in both linear and nonlinear regimes Non-Hermitian quantum systems Exceptional points in optical and photonic systems and applications Wave propagation in disordered non-Hermitian complex media Physical limitations of no...
Generalized bulk-boundary correspondence in periodically driven non-Hermitian systemsJournal of Physics: Condensed Matter (IF 2.3)Xiang Ji, Xiaosen Yang Pub Date: 2024-03-21 Restoration of the non-Hermitian bulk-boundary correspondence via topological amplificationSciPost Physics (IF 4.6)Matteo Brunelli,...
non-Hermitian skin effect (NHSE) is a phenomenon in physics where the eigenstate is localized to the boundary or corner of one side of the system [1,2]. Unlike conventional topological states, the NHSE arises from non-Hermitian parameters such as gain and loss, enabling unique control over ...
In particular, we discuss rich and unique phenomena found therein, such as unidirectional invisibility, enhanced sensitivity, topological energy transfer, coherent perfect absorption, single-mode lasing, and robust biological transport. We then explain in detail how non-Hermitian operators emerge as an ...
In a Hermitian topological system, only the edge states are topologically protected, and their propagation is chiral. However, all eigenstates of the non-Hermitian Hamiltonian are localized, including the bulk and edge states. The wavefunction is forbidden to propagate to one side and get enhanced...
. Special attention is given to exceptional points — branch-point singularities on the complex eigenvalue manifolds that exhibit nontrivial topological properties. We also discuss recent developments in non-Hermitian band topology, such as the non-Hermitian skin effect and non-Hermitian topological ...