Probing the Topological Anderson Transition in Quasiperiodic Photonic Lattices via Chiral Displacement and Wavelength Tuning

Abstract

The interplay of topology and disorder in quantum dynamics has recently attracted significant attention across diverse platforms, including solid-state devices, ultracold atoms, and photonic systems. Here, we report on a topological Anderson transition caused by quasiperiodic modulation of the stronger intra-cell couplings in photonic Su-Schrieffer-Heeger lattices. As the quasiperiodic strength is varied, the system exhibits a reentrant transition from a trivial phase to a topological phase and back to a trivial phase, accompanied by the closing and reopening of the band gap around zero energy. Unlike the traditional detection of photonic topological edge modes, we measure the mean chiral displacement from the transport of light in the bulk of the lattices. In our photonic lattices with a fixed length, the propagation dynamics is retrieved by varying the wavelength of light, which tunes the inter-waveguide couplings.

Comments are welcome. Accepted in Phys. Rev. A

References in corpus (19)

• Analogs of quantum Hall effect edge states in photonic crystals
• Measuring the Chern number of Hofstadter bands with ultracold bosonic atoms
• Topological Anderson Insulator
• Nearest neighbor tight binding models with an exact mobility edge in one dimension
• Photonic Topological Anderson Insulators
• Disorder-induced Floquet Topological Insulators
• Experimental Observation of Higher-Order Topological Anderson Insulators
• Reentrant Localization Transition in a Quasiperiodic Chain
• The dependence of topological Anderson insulator on the type of disorder
• Competition and interplay between topology and quasi-periodic disorder in Thouless pumping of ultracold atoms
• Real-space representation of winding number for one-dimensional chiral-symmetric topological insulator
• Topological Anderson insulating phases in the long-range Su-Schrieffer-Heeger model
• Disorder-induced topological phase transition in a 1D mechanical system
• Topological Anderson insulators with different bulk states in quasiperiodic chains
• Topological supermodes in photonic crystal fiber
• Topological Anderson phase in quasi-periodic waveguide lattices
• Periodically driven model with quasiperiodic potential and staggered hopping amplitudes: engineering of mobility gaps and multifractal states
• Topological states in disordered arrays of dielectric nanoparticles
• Intensity Correlation Measurement to Simulate Two-body BICs and Probe Nonlinear Discrete Breathers

Cited by in corpus (6)

• Recent progress on disorder-induced topological phases
• Multiple reentrant topological windows induced by generalized Bernoulli disorder
• Su-Schrieffer-Heeger model driven by sequences of two unitaries: periodic, quasiperiodic, aperiodic, and random protocols
• Topological Anderson insulator and reentrant topological transitions in a mosaic trimer lattice
• Phase and Photon Number Dependent NOON State Localization in Flat Band Lattices
• Entanglement entropy as a probe of topological phase transitions