Relevant bibliographies by topics / Modèle de Su-Schrieffer-Heeger

Academic literature on the topic 'Modèle de Su-Schrieffer-Heeger'

Author: Grafiati
Published: 25 May 2024

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Journal articles on the topic "Modèle de Su-Schrieffer-Heeger"

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Yu, Ye, Yiwen Song, Tao Chen, Huaiqiang Wang, Songlin Zhuang, and Qingqing Cheng. "Floquet spectrum and optical behaviors in dynamic Su–Schrieffer–Heeger modeled waveguide array." Chinese Optics Letters 19, no. 4 (2021): 042601. http://dx.doi.org/10.3788/col202119.042601.

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Yu, Ye, Yiwen Song, Tao Chen, Huaiqiang Wang, Songlin Zhuang, and Qingqing Cheng. "Floquet spectrum and optical behaviors in dynamic Su–Schrieffer–Heeger modeled waveguide array." Chinese Optics Letters 19, no. 4 (2021): 042601. http://dx.doi.org/10.3788/col202119.042601.

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Dissertations / Theses on the topic "Modèle de Su-Schrieffer-Heeger"

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Allard, Thomas. "Disorder and topology in strongly coupled light-matter systems." Electronic Thesis or Diss., Strasbourg, 2023. http://www.theses.fr/2023STRAE031.

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Cette thèse explore sur le plan théorique l'influence du couplage fort lumière-matière sur deux domaines majeurs de la physique de la matière condensée : les systèmes désordonnés et les phases topologiques de la matière. Nous y étudions le couplage fort entre une cavité optique multimode et, d’abord, une chaîne d'émetteurs dipolaires désordonnée, puis, une chaîne topologique d'émetteurs dipolaires. Dans les deux cas, nous révélons un impact considérable du couplage fort lumière-matière sur les propriétés du système. En étudiant une chaîne désordonnée, nous révélons entre autres que l'augmentation du désordre conduit les états sombres du système à acquérir une partie photonique leur permettant d'hériter de caractéristiques de transport polaritoniques à longue portée. En considérant une chaîne topologique dite de Su-Schrieffer-Heeger, nous révélons notamment l'hybridation des états de bord en états de bord polaritoniques présentant des propriétés de transport bord-à-bord efficaces
This thesis explores theoretically the fate of Anderson localization, as well as of topological phases of matter, in the strong light-matter coupling regime. We analyze the properties of one-dimensional systems made of dipolar emitters strongly-coupled to a multimode optical cavity. By studying a disordered chain of emitters, we find notably that, in the strong-coupling regime, increasing disorder leads almost uncoupled dark states to acquire a photonic part, allowing them to inherit polaritonic long-range transport characteristics. Investigating a dimerized chain of emitters, we study a variation of the Su-Schrieffer-Heeger model of polyacetylene, with the addition of an effective, cavity-induced, dipole-dipole coupling. We unveil the hybridization of the original topological edge states into polaritonic edge states that present unusual properties, such as efficient edge-to-edge transport characteristics
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Conference papers on the topic "Modèle de Su-Schrieffer-Heeger"

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Tusnin, Aleksandr, Xinru Ji, Anton Stroganov, Alexey Tikan, and Tobias J. Kippenberg. "Edge state optical frequency combs in the microresonator based Su-Schrieffer-Heeger model." In CLEO: Fundamental Science. Washington, D.C.: Optica Publishing Group, 2023. http://dx.doi.org/10.1364/cleo_fs.2023.fm1b.7.

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Sohn, Byoung-Uk, Yue-Xin Huang, Ju Won Choi, George F. R. Chen, Doris K. T. Ng, Shengyuan A. Yang, and Dawn T. H. Tan. "A topological optical parametric amplifier on a CMOS-chip." In Nonlinear Optics. Washington, D.C.: Optica Publishing Group, 2023. http://dx.doi.org/10.1364/nlo.2023.w2a.3.

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We demonstrate 12.8dB optical parametric gain using a topological photonic waveguide based on the Su-Schrieffer-Heeger model with a domain wall, implemented on ultra-silicon-rich nitride. The Kerr nonlinearity is observed to induce delocalization in the topological mode.
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Kuchibhatla, Sai Aditya Raman, and Michael J. Leamy. "Dynamics of Interface Relocation in an Electroacoustic Su-Schrieffer-Heeger Topological Lattice." In ASME 2022 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/detc2022-89422.

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Abstract We propose a reconfigurable, electroacoustic topological insulator inspired by the Su-Schrieffer-Heeger (SSH) lattice and then study dynamically-switched topological interfaces. The electroacoustic unit cell design is composed of a host structure with bonded piezoelectric attachments shunted via negative capacitance circuits. We first identify topological behavior via band structure calculations associated with the unit cell. By selectively modifying the elastic properties of the repeated unit cells via attached shunted circuits, we then join two one-dimensional lattices with mirror symmetry to yield a topologically-protected interface mode. We compute the characteristic frequencies and compare the harmonic response of the structures with and without an interface to show amplitude localization at an interface for a frequency within a topological band gap. Control of the shunted circuits using electrical switches allows for reconfiguration of the structure, thereby permitting relocation of the topological interface at an arbitrary time instant. We present numerical studies simulating the diffusion of energy as the interface is shifted from one location to another, exploiting topological-protection to ensure minimal energy loss in spite of a non-smooth change in the elastic properties of the lattice. Our work demonstrates robust, movable interfaces in one-dimensional elastic media which may find applications in communication devices and acoustic tweezing.
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Wang, Ziteng, Domenico Bongiovanni, Zhichan Hu, Xiangdong Wang, Ruoqi Cheng, Daohong Song, Roberto Morandotti, Hrvoje Buljan, and Zhigang Chen. "Inherited topological edge states in photonic trimer lattices." In CLEO: Fundamental Science. Washington, D.C.: Optica Publishing Group, 2023. http://dx.doi.org/10.1364/cleo_fs.2023.fm1b.4.

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We show that topological properties of edge states in trimer lattices are inherited from the Su-Schrieffer-Heeger model, albeit not featuring the traditional Zak phase invariant. Such edge states are demonstrated in a photonic platform.
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Bongiovanni, Domenico, Zhichan Hu, Ziteng Wang, Xiangdong Wang, Yahui Zhang, Dario Jukić, Yi Hu, et al. "Demonstration of Orbital Corner States in Higher-order Photonic Topological Insulators." In CLEO: QELS_Fundamental Science. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cleo_qels.2022.ftu1b.2.

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We report higher-order orbital corner states in two-dimensional Su-Schrieffer-Heeger (SSH) photonic lattices, representing an orbital HOTI model. With appropriately shaped input beams, we explore orbital corner excitations in topologically nontrivial and trivial regimes.
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Saxena, Abhi, Yueyang Chen, Zhuoran Fang, and Arka Majumdar. "Photonic Topological Baths for Quantum Simulation." In CLEO: Science and Innovations. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cleo_si.2022.sf3g.5.

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Using coupled arrays of upto 16 high Q nanocavities we experimentally realized quantum photonic baths based on the Su-Schrieffer-Heeger model and investigated the effect of fabrication induced disorder on these baths by probing individual super-modes.
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Wang, Yu, Donghao Yang, Shaohua Gao, Xinzheng Zhang, Irena Drevensek-Olenik, Qiang Wu, Marouen Chemingui, Zhigang Chen, and Jingjun Xu. "Visible Topological Lasing Based on a Polymer-cholesteric Liquid Crystal Superlattice." In CLEO: Applications and Technology. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cleo_at.2022.jw3b.63.

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Low-threshold topological lasing at visible wavelengths and with circular polarizations is demonstrated theoretically, and experimentally in a femtosecond-laser-written micron-sized polymer-cholesteric liquid crystal composite structure by manipulating the topological mini-bands based on the Su-Schrieffer-Heeger model.
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Wang, B. X., and C. Y. Zhao. "Topological Phonon Polaritons for Thermal Radiation Control." In ASME 2019 6th International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/mnhmt2019-4002.

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Abstract Topological phonon polaritons (TPhPs) are highly localized edge modes that can achieve a strong confinement of electromagnetic waves and are topologically protected to be immune to impurities and disorder. In this paper, we theoretically study the topological phonon polaritons (TPhPs) in one-dimensional (1D) dimerized silicon carbide (SiC) nanoparticle (NP) chains, as an extension of the celebrated Su-Schrieffer-Heeger (SSH) model. We analytically calculate the band structure and complex Zak phase for such chains by taking all near-field and far-field interactions into account. It is found that the 1D dimerized chain supports nontrivial topological states as long as the dimeriza-tion parameter β > 0.5 and the long-range interactions are weak, although the system is non-Hermitian. By analyzing the distribution of eigenmodes and their participation ratios (PRs), we comprehensively study the effects of disorder on the band structure and midgap modes. We reveal that such TPhPs are very robust under high-degree disorders and even enhanced by the disorder. Through a finite-size scaling analysis, we show this enhancement can be attributed to Anderson localization scheme. These topological phonon polaritonic states provide an efficient interface for thermal radiation control in the mid-infrared.
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