中文
相关论文

相关论文: High-Winding-Number Zero-Energy Edge States in Rho…

200 篇论文

We study the two-dimensional extension of the Su-Schrieffer-Heeger model in its higher order topological insulator phase, which is known to host corner states. Using the separability of the model into a product of one-dimensional…

介观与纳米尺度物理 · 物理学 2020-12-22 Antonin Coutant , Vassos Achilleos , Olivier Richoux , Georgios Theocharis , Vincent Pagneux

A five-level M-type scheme in atomic ensembles is proposed to generate a one-dimensional bipartite superradiance lattice in momentum space. By taking advantage of this tunable atomic system, we show that various types of…

量子气体 · 物理学 2023-08-30 Shuai Li , Rui Tian , Huan Wang , Min Liu , Liangchao Chen , Bo Liu

In this work we investigate non-Hermitian topological phase transitions using real-space edge states as a paradigmatic tool. We focus on the simplest non-Hermitian variant of the Su-Schrieffer-Hegger model, including a parameter that…

强关联电子 · 物理学 2024-03-15 Rui Aquino , Nei Lopes , Daniel G. Barci

In order to transport information with topological protection, we explore experimentally the fast transport time using edge states in one-dimensional Su-Schrieffer-Heeger (SSH) chains. The transport time is investigated in both one- and…

We show that the bulk-boundary correspondence for topological insulators can be modified in the presence of non-Hermiticity. We consider a one-dimensional tight-binding model with gain and loss as well as long-range hopping. The system is…

量子物理 · 物理学 2016-04-04 Tony E. Lee

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

We investigate the Su-Schrieffer-Heeger model in presence of an injection and removal of particles, introduced via a master equation in Lindblad form. It is shown that the dynamics of the density matrix follows the predictions of…

量子物理 · 物理学 2019-01-30 Marcel Klett , Holger Cartarius , Dennis Dast , Jörg Main , Günter Wunner

The topological properties of the Su-Schrieffer-Heeger (SSH) model in the presence of nearest-neighbor interaction are investigated by means of a topological marker, generalized from a noninteracting one by utilizing the single-particle…

强关联电子 · 物理学 2023-12-01 Pedro B. Melo , Sebastião A. S. Júnior , Wei Chen , Rubem Mondaini , Thereza Paiva

Periodically driven systems have a longstanding reputation for establishing rich topological phenomena beyond their static counterpart. In this work, we propose and investigate a periodically driven extended Su-Schrieffer-Heeger model with…

介观与纳米尺度物理 · 物理学 2025-05-27 Mohammad Ghuneim , Raditya Weda Bomantara

Chimera states, characterized by the coexistence of coherent and incoherent domains, represent a paradigm of self-organization in complex systems. In this study, we introduce a topological analysis method based on winding numbers to…

适应与自组织系统 · 物理学 2026-05-12 Lintao Liu , Nariya Uchida

Simple route of engineering topological phases for any desired value of winding and Chern numbers is found in the Su-Schrieffer-Heeger (SSH) model by adding a further neighbor hopping term of varying distances. It is known that the standard…

介观与纳米尺度物理 · 物理学 2023-05-19 Rakesh Kumar Malakar , Asim Kumar Ghosh

Supramolecular device (SMD) with topological end states and a noncovalent junction is rarely investigated but deemed promising for thermoelectric (TE) applications. We designed a new kind of SMD based on the Su-Schrieffer-Heeger (SSH)…

计算物理 · 物理学 2025-12-03 Wenlai Mu , Nisar Muhammad , Huaihong Guo , Zsolt Gulacsi , Teng Yang , Zhidong Zhang

We investigate interacting Su-Schrieffer-Heeger (SSH) chains with two- and three-site unit cells using density matrix renormalization group (DMRG) simulations. By selecting appropriate filling fractions and sweeping across interaction…

强关联电子 · 物理学 2025-12-18 Yuxiao Hang , Stephan Haas

We study disorder effects in the extended Su-Schrieffer-Heeger (SSH) model using a convolutional neural network (CNN) trained on reduced correlation matrices (RCMs) of disorder-free systems to predict winding number phase diagrams in…

无序系统与神经网络 · 物理学 2026-03-13 Zhekai Yin , C. K. Ong

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

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

We study the disconnected entanglement entropy, $S^D$, of the Su-Schrieffer-Heeger model. $S^D$ is a combination of both connected and disconnected bipartite entanglement entropies that removes all area and volume law contributions, and is…

强关联电子 · 物理学 2021-01-18 Tommaso Micallo , Vittorio Vitale , Marcello Dalmonte , Pierre Fromholz

A second-order topological insulator on a two-dimensional square lattice hosts zero-dimensional states inside a band gap. They are localized near $90^{\circ}$ and $270^{\circ}$ corners constituting an edge of the system. When the edge is in…

介观与纳米尺度物理 · 物理学 2021-09-22 Yuki Nagasato , Yositake Takane , Yukinori Yoshimura , Shin Hayashi , Takeshi Nakanishi

We construct microscopical models of one-dimensional non-interacting topological insulators in all of the chiral universality classes. Specifically, we start with a deformation of the Su-Schrieffer-Heeger (SSH) model that breaks…

介观与纳米尺度物理 · 物理学 2023-03-01 Polina Matveeva , Tyler Hewitt , Donghao Liu , Kethan Reddy , Dmitri Gutman , Sam T. Carr

We theoretically investigate the thermoelectric properties of zigzag bilayer phosphorene nanoribbons (ZBPNR). We first, draw an analogy between the extended Su-Schrieffer-Heeger (SSH) ladder and ZBPNR edge states and obtain their…

介观与纳米尺度物理 · 物理学 2022-08-10 Shima Sodagar , Hossein Karbaschi , Morteza Soltani , M. Amini