中文
相关论文

相关论文: Identifying Klein tunneling signatures in bearded …

200 篇论文

We investigate the edge states and the topological phase transitions in a class of tight binding lattices in one dimension where a Su-Schrieffer-Heeger (SSH) model exists in disguise. The unit cells of such lattices may have an arbitrarily…

无序系统与神经网络 · 物理学 2025-01-07 Subhajyoti Bid , Arunava Chakrabarti

In polymer science, cross-linking of polymer chains yields a substantially modified system compared to the one-dimensional constituent chains, due to the increase of dimensionality and effective seeding by defects (cross-linking sites).…

介观与纳米尺度物理 · 物理学 2022-08-25 A. Sivan , M. Orenstein

The Su-Schrieffer-Heeger (SSH) model lays the foundation of many important concepts in quantum topological matters. Since it tells one that topological states may be distinguished by abelian geometric phases, a question naturally arises as…

量子气体 · 物理学 2017-06-28 Shao-Liang Zhang , Qi Zhou

Flat, non-dispersive bands and topological phase transition in multiple Su-Schrieffer-Heeger (SSH) chains, cross-linked via periodically arranged nodal points are explored within a tight binding framework. We give analytic prescription,…

介观与纳米尺度物理 · 物理学 2024-11-20 Sauvik Chatterjee , Sougata Biswas , and Arunava Chakrabarti

The Su-Schrieffer-Heeger (SSH) model, which captures the most striking transport properties of the conductive organic polymer $trans$-polyacetylene, provides perhaps the most basic model system supporting topological excitations. The…

量子气体 · 物理学 2017-05-12 Eric J. Meier , Fangzhao Alex An , Bryce Gadway

The one-dimensional Su-Schrieffer-Heeger (SSH) model is a prototype model in the field of topological condensed matter physics, and the existence and characteristics of its topological edge states are crucial for revealing the topological…

介观与纳米尺度物理 · 物理学 2025-09-23 Weibo Xu

In order to transport information with topological protection, we reveal and demonstrate experimentally the existence of a characteristic length $L_c$, coined as the transport length, in the bulk size for edge states in one-dimensional…

The Su-Schrieffer-Heeger (SSH) model describes a paradigmatic one-dimensional (1-D) system that exhibits a non-trivial band topology. In this paper, we foreground a new scheme involving a 1-D chain of $2N+1$ Bosonic modes with…

量子物理 · 物理学 2022-11-30 Jayakrishnan M. P. Nair

In this work, we theoretically study a modified Su-Schrieffer-Heeger (SSH) model in which each unit cell consists of three sites. Unlike existing extensions of the SSH model which are made by enlarging the periodicity of the…

介观与纳米尺度物理 · 物理学 2024-09-10 Mohammad Ghuneim , Raditya Weda Bomantara

We present a continuous non-local model that faithfully replicates the rich topological and spectral features of the Su-Schrieffer-Heeger (SSH) model. Remarkably, our model shares the SSH models bulk energy spectrum, eigenstates, and Zak…

量子物理 · 物理学 2025-11-11 Fotios K. Diakonos , P. Schmelcher

The Su-Schrieffer-Heeger (SSH) chain is the reference model of a one-dimensional topological insulator. Its topological nature can be explained by the quantization of the Zak phase, due to reflection symmetry of the unit cell, or of the…

介观与纳米尺度物理 · 物理学 2023-10-12 Malte Röntgen , Xuelong Chen , Wenlong Gao , Maxim Pyzh , Peter Schmelcher , Vincent Pagneux , Vassos Achilleos , Antonin Coutant

The Su-Schrieffer-Heeger (SSH) chain is an one-dimensional lattice that comprises two dimerized sublattices. Recently, Zhu, Prodan, and Ahn (ZPA) proposed in [L. Zhu, E. Prodan, and K. H. Ahn, Phys. Rev. B \textbf{99}, 041117 (2019)] that…

材料科学 · 物理学 2022-03-14 Sunam Jeon , Youngkuk Kim

Non-Hermitian topological phenomena have gained much interest among physicists in recent years. In this paper, we expound on the physics of dissipatively coupled Su-Schrieffer-Heeger (SSH) lattices, specifically in systems with bosonic and…

量子物理 · 物理学 2024-04-16 Jayakrishnan M. P. Nair , Marlan O. Scully , Girish S. Agarwal

Topological models are characterized by a quantized topological invariant and provide a description of novel phases of matter that can exhibit localized edge states, corner modes, and chiral transport. We experimentally realize two 1-D…

Klein tunneling, the perfect transmission of normally incident Dirac electrons across a potential barrier, has been widely studied in graphene and explored to design switches, albeit indirectly. We show that Klein tunneling maybe easier to…

介观与纳米尺度物理 · 物理学 2017-12-06 Yunkun Xie , Yaohua Tan , Avik W. Ghosh

The discrete Hamiltonian of Su, Schrieffer and Heeger (SSH) is a well-known one-dimensional translation-invariant model in condensed matter physics. The model consists of two atoms per unit cell and describes in-cell and out-of-cell…

数学物理 · 物理学 2022-11-30 Jacob Shapiro , Michael I. Weinstein

The Su-Schrieffer-Heeger (SSH) model describes a one-dimensional $Z_{2}$ topological insulator, which has two topological distinct phases corresponding to two different dimerizations. When spin-orbit coupling is introduced into the SSH…

强关联电子 · 物理学 2014-08-19 Zhongbo Yan , Shaolong Wan

Su-Schrieffer-Heeger (SSH) model on two-dimensional square lattice exhibits a topological phase transition, which is related to the Zak phase determined by bulk band topology. The strong modulation of electron hopping causes nontrivial…

介观与纳米尺度物理 · 物理学 2019-09-04 Daichi Obana , Feng Liu , Katsunori Wakabayashi

We demonstrate a platform for synthetic dimensions based on coupled Rydberg levels in ultracold atoms, and we implement the single-particle Su-Schrieffer-Heeger (SSH) Hamiltonian. Rydberg levels are interpreted as synthetic lattice sites,…

原子物理 · 物理学 2022-03-09 S. K. Kanungo , J. D. Whalen , Y. Lu , M. Yuan , S. Dasgupta , F. B. Dunning , K. R. A. Hazzard , T. C. Killian

The Su-Schrieffer-Heeger (SSH) model describes a tight-binding one-dimensional (1D) lattice with alternating nearest-neighbor amplitudes. Despite its mathematically simple and physically intuitive structure, the SSH model is capable of…

介观与纳米尺度物理 · 物理学 2026-04-10 Raditya Weda Bomantara
‹ 上一页 1 2 3 10 下一页 ›