Floquet chern insulator of light

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August undefined, 2024

WebApr 21, 2024 · Electronic bands with non-zero Chern number is understood to give rise to topological phenomena. On the other hand, strong correlation between electrons heavily … WebFeb 22, 2024 · Here, we extend topological phases into dynamically driven nonlinear systems and achieve a Floquet Chern insulator of light in nonlinear photonic crystals …

Photonic Floquet topological insulators Nature

WebFeb 9, 2024 · The breaking of time-reversal symmetry is a crucial ingredient to topological bands. It can occur intrinsically in materials with magnetic order, or be induced by external fields, such as magnetic fields in quantum Hall systems or circularly polarized light fields in Floquet Chern insulators. Apart from polarization, photons can carry another degree of … WebMay 10, 2024 · In this respect, the concept of magnonic Floquet Chern insulator has emerged 41,42,43, where circularly-polarized light induces a dynamical Dzyaloshinskii-Moriya (DM) interaction 47,48,49 in a ... tidelands bank mount pleasant

Bimorphic Floquet topological insulators Nature Materials

WebWe achieve Floquet Chern insulators of light in dynamically driven nonlinear photonic crystals. Through numerical simulation, we show the topological phase transitions occur at synthetic Weyl points and the existence of topologically-protected chiral edge states. WebFeb 22, 2024 · Floquet Chern Insulators of Light. Achieving topologically-protected robust transport in optical systems has recently been of great interest. Most topological photonic … WebSep 27, 2024 · Circularly polarized light induces a transition to a topologically nontrivial Floquet band structure with the Berry curvature analogous to a Chern insulator. Importantly, the twisting allows for tuning electronic energy scales, which implies that the electronic bandwidth can be tailored to match realistic driving frequencies in the … tidelands author

[1902.08560v1] Floquet Chern Insulators of Light

Floquet Chern insulators of light - PubMed

WebFloquet ansatz reveals a direct connection to the two-dimensional half-BHZ Chern insulator [17] with a constant electric field applied [16,32]. In the strong-drive limit, the electric field is weak and leads to a slow adiabatic evolution of the initial wavepacket through the Brillouin zone. During this evolution, which explores the whole WebSep 13, 2024 · @article{osti_1624194, title = {Floquet Chern insulators of light}, author = {He, Li and Addison, Zachariah and Jin, Jicheng and Mele, Eugene J. and Johnson, … tidelands aquatic hanahan scWebFeb 22, 2024 · Here, we extend topological phases into dynamically driven nonlinear systems and achieve a Floquet Chern insulator of light in nonlinear photonic crystals (PhCs). Specifically, we start by presenting the Floquet eigenvalue problem in driven two-dimensional PhCs and show it is necessarily non-Hermitian. the magical christmas co

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Floquet chern insulator of light

Topological Floquet engineering of twisted bilayer graphene

WebTopological insulators have unconventional gapless edge states where disorder-induced back-scattering is suppressed. In photonics, such edge states lead to unidirectional waveguides which are useful for integrated photonic circuitry. Cavity modes, WebFloquet Chern insulators of light Li He1, Zachariah Addison1, Jicheng Jin1, Eugene J. Mele1, Steven G. Johnson2 & Bo Zhen1 Achieving topologically-protected robust …

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WebSep 13, 2024 · Floquet Chern insulators of light Nat Commun. 2024 Sep 13 ... Finally, we numerically demonstrate the existence of chiral edge states at the interfaces between a … Webneer the external drive to break Tand to close and re-open Floquet gaps to change bands Chern numbers. Finally, through numerical simulations of realistic designs, we present an explicit exam-ple of a Floquet Chern insulator, along with the dispersions and locations of uni-directional chiral edge states at its interfaces with normal insulators.

WebDec 22, 2024 · (b) Schematic depiction of the implementation of a photonic Floquet topological insulator using a three-dimensional waveguide array. (c) Quasienergy spectrum of the bipartite photonic lattice (δ = 0.18) showing two ungapped bulk bands (blue) with zero net Chern number and chiral edge states (red). (d) Micrograph of the facet of a … WebMar 1, 2024 · Here, we extend topological phases into dynamically driven systems and achieve a Floquet Chern insulator of light in nonlinear photonic crystals (PhCs). Specifically, we start by presenting the ...

WebWe achieve Floquet Chern insulators of light in dynamically driven nonlinear photonic crystals. Through numerical simulation, we show the topological phase transitions occur … WebHere, we study Floquet topological phases in general nonlinear PhCs under external drive and show how non-reciprocal transport can be achieved in a Floquet Chern insulator. …

WebAug 22, 2024 · Floquet Chern insulators of light. 13 September 2024. Li He, Zachariah Addison, … Bo Zhen. Superior robustness of anomalous non-reciprocal topological edge states. 13 October 2024.

WebJul 20, 2024 · We calculate the topological Floquet spectrum and show the existence of topological edge states corresponding to real-space Chern number 1 24,25, which can … the magical child archetypeWebFeb 22, 2024 · Request PDF Floquet Chern Insulators of Light Achieving topologically-protected robust transport in optical systems has recently been of great interest. Most … tidelands at prince creekWebFeb 16, 2024 · Floquet topological photonic insulators, whose light transport properties are dictated by the periodic drive sequence of the … the magical child nycWebSep 13, 2024 · Topological phase transition points in 3D synthetic parameter space. a The topological phase transition point is defined in the parameter space of ( kx, ky, Ω). b … tidelands cardiology scWebSep 13, 2024 · The Floquet Chern insulator is the same setup as the right panel of Fig. 3d. All regions are driven at the same frequency Ω3, and the associated gap Chern number for the Floquet insulator is Cg = 1. the magical christmas horseWebFloquet Chern insulators of light Li He1, Zachariah Addison1, Jicheng Jin1, Eugene J. Mele1, Steven G. Johnson2 & Bo Zhen1 Achieving topologically-protected robust transport in optical systems has recently been of great interest. Most studied topological photonic structures can be understood by solving the the magical christmas jigsaw nativityWebFeb 22, 2024 · Here, we extend topological phases into dynamically driven nonlinear systems and achieve a Floquet Chern insulator of light in nonlinear photonic crystals … tidelands central scheduling