Topological ventilated sound switch from acoustic Su-Schrieffer–Heeger model
Sign Up to like & getrecommendations! Published in 2023 at "Applied Physics Letters"
DOI: 10.1063/5.0144221
Abstract: In the last two decades, the emergence of acoustic metamaterials has offered previously unimaginable possibilities for extraordinary control of sound waves. For example, various extremely light-weight sound attenuation systems based on metamaterials and phononic crystals… read more here.
Keywords: acoustic schrieffer; topological ventilated; schrieffer heeger; switch ... See more keywords
Tunable topological edge modes in Su–Schrieffer–Heeger arrays
Sign Up to like & getrecommendations! Published in 2023 at "Applied Physics Letters"
DOI: 10.1063/5.0152172
Abstract: A potential weakness of topological waveguides is that they act on a fixed narrow band of frequencies. However, by 3D printing samples from a photo-responsive polymer, we can obtain a device whose operating frequency can… read more here.
Keywords: schrieffer heeger; modes schrieffer; tunable topological; edge modes ... See more keywords
Resonant edge-site pumping of polaritonic Su-Schrieffer-Heeger lattices
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review A"
DOI: 10.1103/physreva.98.023801
Abstract: We have theoretically investigated Su-Schrieffer-Heeger chains modelled as optical lattices (OL) loaded with exciton-polaritons. The chains have been subject to the resonant pumping of the edge site and shaken in either adiabatic or high-frequency regime.… read more here.
Keywords: edge site; schrieffer heeger;
Observation of Edge Waves in a Two-Dimensional Su-Schrieffer-Heeger Acoustic Network
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review Applied"
DOI: 10.1103/physrevapplied.12.034014
Abstract: In this work, we experimentally report the acoustic realization the two-dimensional (2D) Su-Schrieffer-Heeger (SSH) model in a simple network of air channels. We analytically study the steady state dynamics of the system using a set… read more here.
Keywords: dimensional schrieffer; schrieffer heeger; edge waves; network ... See more keywords
Exciton transport enhancement across quantum Su-Schrieffer-Heeger lattices with quartic nonlinearity
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.104307
Abstract: In the present work we discuss the propagation of excitons across a one-dimensional Su-Schrieffer-Heeger lattice, which possesses both harmonic oscillations and weak quartic anharmonicities. When quantizing these vibrational degrees of freedom we identify several phonon-conserving… read more here.
Keywords: transport; schrieffer heeger; exciton transport;
Acoustic Su-Schrieffer-Heeger lattice: Direct mapping of acoustic waveguides to the Su-Schrieffer-Heeger model
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.103.224309
Abstract: Topological physics strongly relies on prototypical lattice model with particular symmetries. We report here on a theoretical and experimental work on acoustic waveguides that is directly mapped to the one-dimensional Su-Schrieffer-Heeger chiral model. Starting from… read more here.
Keywords: lattice; model; schrieffer heeger; acoustic waveguides ... See more keywords
Wave-packet spreading in the disordered and nonlinear Su-Schrieffer-Heeger chain
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review B"
DOI: 10.1103/physrevb.107.184313
Abstract: We numerically investigate the characteristics of the long-time dynamics of a single-site wave-packet excitation in a disordered and nonlinear Su-Schrieffer-Heeger model. In the linear regime, as the parameters controlling the topology of the system are… read more here.
Keywords: schrieffer heeger; wave packet; packet; nonlinear schrieffer ... See more keywords
Topological nodal points in two coupled Su-Schrieffer-Heeger chains
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.125418
Abstract: We study two coupled Su-Schrieffer-Heeger (SSH) chains system, which is shown to contain rich quantum phases associated with topological invariants protected by symmetries. In the weak coupling region, the system supports two non-trivial topological insulating… read more here.
Keywords: two coupled; schrieffer heeger; topological nodal; nodal points ... See more keywords
Topological edge solitons and their stability in a nonlinear Su-Schrieffer-Heeger model.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review. E"
DOI: 10.1103/physreve.104.054206
Abstract: We study continuations of topological edge states in the Su-Schrieffer-Heeger model with on-site cubic (Kerr) nonlinearity, which is a 1D nonlinear photonic topological insulator (TI). Based on the topology of the underlying spatial dynamical system,… read more here.
Keywords: edge solitons; topological edge; heeger model; schrieffer heeger ... See more keywords
Reconstructing the dynamical quantum phase transitions via dimensional expansion in a generalized Su-Schrieffer-Heeger model.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.106.014124
Abstract: We know that a one-dimensional (1D) modulated system can simulate 2D topological states by expanding the dimension. This scenario provides a justifiable avenue to test the dilatation of the dynamical quantum phase transition (DQPT). Through… read more here.
Keywords: schrieffer heeger; phase; dynamical quantum; model ... See more keywords
Quantum Monte Carlo Simulations of the 2D Su-Schrieffer-Heeger Model.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review letters"
DOI: 10.1103/physrevlett.126.017601
Abstract: Over the past several years, a new generation of quantum simulations has greatly expanded our understanding of charge density wave phase transitions in Hamiltonians with coupling between local phonon modes and the on-site charge density.… read more here.
Keywords: monte carlo; simulations schrieffer; model; schrieffer heeger ... See more keywords