Recently, optical nonlinearity has emerged as a tool for tailoring topological and non-Hermitian (NH) properties, promising fast manipulation of topological phases. In this work, we observe topologically protec
topological insulators, where such interface modes are absent due to the same spectral structures regardless of the choice of time frame. We emphasize that the intriguing properties of FNATI stem from the presence of multiple tangled bandgaps. Our findings expand the scope of Floquet topological ins...
Topological triple phase transition in non-Hermitian floquet quasicrystals. Nature 601(7893), 354–359. https://doi.org/10.1038/s41586-021-04253-0 (2022). 57. Lin, Q. et al. Topological phase transitions and mobility edges in non-Hermitian quasicrystals. Phys. ...
For these system, PT symmetry has been employed to obtain the topological states or to tailor such states within a 1D structure [39], [40], but the procedure to calculate topological numbers based on chiral symmetry is no longer fully applicable. Recently, a few non-Hermitian Floquet systems...
Restoration of the non-Hermitian bulk-boundary correspondence via topological amplificationSciPost Physics (IF 4.6)Matteo Brunelli, Clara C. Wanjura, Andreas Nunnenkamp Pub Date: 2023-10-19 Bulk-Boundary Correspondence for Interacting Floquet Systems in Two DimensionsPhysical Review X (IF 11.6)Carolyn...
Shin, Topological floquet engineering of a one-dimensional optical lattice via resonant shaking with two harmonic frequencies. Phys. Rev. A 102(6), 063315 (2020) Article ADS MathSciNet MATH Google Scholar D. Leykam, S. Flach, Y.D. Chong, Flat bands in lattices with non-hermitian coupling...
Occupation-dependent particle separation in non-Hermitian lattices 3893 01:14:00 Dynamical geometry in topological systems under a sudden quench 4042 01:21:00 The resource theory of quantum thermodynamics 3530 56:00 From self-contained quantum refrigerator to thermodynamical devices ...
The Wannier-Stark localization dynamically alters the entanglement behavior of non-Hermitian free fermions. Utilizing the single-particle correlation matrix technique, we analyze the effective Hamiltonian of these fermions with a Wannier-Stark ladder. Under open boundary conditions, we observe the steady ...
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...
Periodically driven non-Hermitian systems can exhibit rich topological band structure and non-Hermitian skin effect, without analogs in their static or Hermitian counterparts. In this work we investigate the exceptional band-touching points in the Floquet quasienergy bands, the topological characterization...