Topological pumping over a photonic Fibonacci quasicrystal

By M. Verbin, Oded Zilberberg, Y. Lahini, Yaacov E. Kraus, Yaron R. Silberberg. 2014

192 citations recorded by the source corpus.

Quasiperiodic lattices have recently been shown to be a non-trivial topological phase of matter. Charge pumping -- one of the hallmarks of topological states of matter -- was recently realized for photons in a one-dimensional (1D) off-diagonal Harper model implemented in a photonic waveguide array. The topologically nontrivial 1D Fibonacci quasicrystal (QC) is expected to facilitate a similar phenomenon, but its discrete nature and lack of pumping parameter hinder the experimental study of such topological effects. In this work we overcome these obstacles by utilizing a family of topologically equivalent QCs which ranges from the Fibonacci QC to the Harper model. Implemented in photonic waveguide arrays, we observe the topological properties of this family, and perform a topological pumping of photons across a Fibonacci QC.

Subfields: Atomic and Molecular Physics, and Optics, Geometry and Topology, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/9e65a447dfd0f3870194c8218f241f8f4d997e95

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In Atomic and Molecular Physics, and Optics

In Geometry and Topology

In Materials Chemistry

Citations in the corpus

Thouless pumping and topology (2022, background): “Due to the versatility and control of synthetic quantum systems experimental demonstrations of adiabatic quantum pumps have been achieved with cold atoms [12– 14, 23] and photons [6, 7].”
Artificial gauge fields in materials and engineered systems (2017, unknown): “These ideas have been successfully realized in photonic systems [175,176,177] and ultracold atoms [178,179,180,181], and recently enabled studies of 4D quantum Hall physics based on 2D topological pumping [182,183].”
Topological Photonic Crystals: Physics, Designs, and Applications (2022, methodology): “For example, the quasiperiodic Harper model in optical lattices was experimentally realized [100], and the photonic Kitaev model was studied on the zigzag chain of nanoparticles [19, 101].”
Topological photonics (2018, methodology): “Unitary photonic topological pumps have been realized using coupled waveguide arrays (Kraus et al., 2012; Verbin et al., 2015), whereas non-Hermitian pumps with exceptional points were realized using microwave cavities (Hu et al.”