Topological Floquet interface states in optical fibre loops
arXiv:2010.06966 · doi:10.1103/PhysRevA.102.053511
Abstract
We experimentally observe a coexisting pair of topological anomalous Floquet interface states in a (1+1)-dimensional Discrete Photon Walk. We explicitly verify the robustness of these states against local static perturbations respecting chiral symmetry of the system, as well as their vulnerability against non-stationary perturbations. The walk is implemented based on pulses propagating in a pair of coupled fibre loops of dissimilar lengths with dynamically variable mutual coupling. The topological interface is created via phase modulation in one of the loops, which allows for an anomalous Floquet topological transition at the interface.
arXiv comment21 pages, 5 figures, submitted to Physical Review A
References in corpus (38)
- Quantum Spin Hall Effect in Graphene
- Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
- Topological Order and the Quantum Spin Hall Effect
- Classification of topological insulators and superconductors in three spatial dimensions
- Photonic Floquet Topological Insulators
- Photonic Analogue of Two-dimensional Topological Insulators and Helical One-Way Edge Transport in Bi-Anisotropic Metamaterials
- Imaging topological edge states in silicon photonics
- Robust optical delay lines via topological protection
- Topological characterization of periodically-driven quantum systems
- Topological States and Adiabatic Pumping in Quasicrystals
- Anomalous edge state in a non-Hermitian lattice
- Observation of topologically protected bound states in a one dimensional photonic system
- Exploring Topological Phases With Quantum Walks
- Observation of photonic anomalous Floquet Topological Insulators
- Topologically protected acoustic helical edge states and interface states in strongly coupled metamaterial ring lattices
- Experimental observation of anomalous topological edge modes in a slowly-driven photonic lattice
- Observation of Topological Phase Transitions in Photonic Quasicrystals
- Periodic Table for Floquet Topological Insulators
- Topological singularities and the general classification of Floquet-Bloch systems
- Chiral symmetry and bulk--boundary correspondence in periodically driven one-dimensional systems
- Bulk--Boundary Correspondence for Chiral Symmetric Quantum Walks
- Topological Pumping over a Photonic Fibonacci Quasicrystal
- The anomalous Floquet-Anderson insulator as a non-adiabatic quantized charge pump
- Classification of topological phases in periodically driven interacting systems
- Symmetries, Topological Phases and Bound States in the One-Dimensional Quantum Walk
- Floquet topological transitions in a driven one-dimensional topological insulator
- Observation of anomalous π modes in photonic Floquet engineering
- Anomalous Topological Phases and Unpaired Dirac Cones in Photonic Floquet Topological Insulators
- Unveiling hidden topological phases of a one-dimensional Hadamard quantum walk
- Topological phases and nonreciprocal edge states in non-Hermitian Floquet Insulators
- Recipe for creating an arbitrary number of Floquet chiral edge states
- Quantum computation via Floquet topological edge modes
- Non-Hermitian Boundary State Engineering in Anomalous Floquet Topological Insulators
- Symmetry-protected topological phases with uniform computational power in one dimension
- Limits of topological protection under local periodic driving
- Ground states of 1D symmetry-protected topological phases and their utility as resource states for quantum computation
- Chiral Flow in One-dimensional Floquet Topological Insulators
- Observation of localized modes at effective gauge field interface in synthetic photonic lattice