388 citations · 2.3k across the 53 of their papers we have counts for
54 papers
Higher-Order Flatband-Touching Points Mediate Unconventional Bulk-Boundary Correspondence
Limin Song, Jianqi Xiong, Liqin Tang +2
The bulk-boundary correspondence establishes a fundamental connection between bulk band topology and the emergence of boundary states, underpinning topological phenomena across ele…
Interplay of Flat-band and Anderson localizations in disordered moire superlattices
Qian Liu, Xiaoshuang Xia, Junjie Wang +5
Disorder in moire superlattices simultaneously degrades flat-band localization and induces Anderson localization, yet how these two regimes interact has remained unclear. Here, we…
A Non-Abelian Route to Z2 Non-Hermitian Skin Effects
Huiyan Tang, Yaxuan Zhang, Ziteng Wang +7
The non-Hermitian skin effect (NHSE), characterized by extensive boundary accumulation of eigenstates under open boundary conditions, has emerged as a central phenomenon in non-Her…
Fractal hierarchy enables exponential scaling of topological boundary states
Limin Song, Zhichan Hu, Ziteng Wang +7
Exponential growth describes an extremely rapid process ubiquitous across mathematics and diverse physical, biological, and technological systems. Here, we introduce a class of fra…
Subsymmetry-protected compact edge states
Ruoqi Cheng, Domenico Bongiovanni, Ziteng Wang +6
Sub-symmetry (SubSy) protected topological states represent a concept that goes beyond the conventional framework of symmetry-protected topological (SPT) phases, demonstrating that…
Phase Transitions and Topological Protection in Anyonic-PT-Symmetric Lattices
Ruiying Zhang, Ziteng Wang, Daohong Song +3
Parity-time (PT) symmetry and anti-PT symmetry have attracted extensive interest for their non-Hermitian spectral properties, particularly the emergence of purely real and imaginar…
Controllable Lateral Optical Forces on Janus Particles in Fluid Media
Ziheng Xiu, Yue Chai, Pengyu Wen +7
Optical forces - studied since the earliest days of laser physics - continue to reveal rich dynamics and enable powerful tools for manipulation of objects on micro- and nanoscales,…
Quadratic Band Touching and Nontrivial Winding Reveal Generalized Angular Momentum Conservation
Yihan Wang, Domenico Bongiovanni, Dario Jukić +7
Angular momentum conservation stands as one of the most fundamental and robust laws of physics. In discrete lattices, however, its realization can deviate markedly from the continu…
Strain-Induced Boundary States and Phase Transitions in Graphene Flakes
Yongsheng Liang, Shiqi Xia, Daohong Song +2
Strain has been extensively employed to tailor graphene's properties and has emerged as a powerful tool for engineering gauge fields and exploring fundamental phenomena in artifici…
Unveiling prethermalization and thermal processes through the simplest one-dimensional topological model
Guowen Yang, Jiale Wang, Yichuan Chen +5
Drawing on classical thermodynamic principles-such as the equipartition of energy and entropy maximization-extensive research has shown that the evolution of optical power in multi…
Observation of doubly-degenerate topological flatbands of edge states in strained graphene
Yongsheng Liang, Jingyan Zhan, Shiqi Xia +2
Flat bands are of significant interest due to their potential for energy confinement and their ability to enable strongly correlated physics. Incorporating topology into flatband s…
Observation of Topological Armchair Edge States in Photonic Biphenylene Network
Qi Zhong, Yongsheng Liang, Shiqi Xia +2
Edge states in 2D materials are vital for advancements in spintronics, quantum computing, and logic transistors. For graphene nanoribbons, it is well known that the zigzag edges ca…
Bulk-hole correspondence and inner robust boundary modes in singular flatband lattices
Limin Song, Shenyi Gao, Shiqi Xia +5
Topological entities based on bulk-boundary correspondence are ubiquitous, from conventional to higher-order topological insulators, where the protected states are typically locali…
Multi-topological phases of matter
Ziteng Wang, Domenico Bongiovanni, Xiangdong Wang +7
The discovery of topological phases of matter and topological boundary states had tremendous impact on condensed matter physics and photonics, where topological phases are defined…
Thermalization dynamics in photonic lattices of different geometries
Guowen Yang, Domenico Bongiovanni, Daohong Song +3
The statistical mechanical behavior of weakly nonlinear multimoded optical settings is attracting increased interest during the last few years. The main purpose of this work is to…
Optical Vortex Ladder via Sisyphus Pumping of Pseudospin
Sihong Lei, Shiqi Xia, Daohong Song +3
Robust higher-order optical vortices are much in demand for applications in optical manipulation, optical communications, quantum entanglement and quantum computing. However, in nu…
Multiple flat bands and localized states in photonic super-Kagome lattices
Limin Song, Shenyi Gao, Jina Ma +4
We demonstrate multiple flat bands and compact localized states (CLSs) in a photonic super-Kagome lattice (SKL) that exhibits coexistence of singular and nonsingular flat bands wit…
Observation of topologically distinct corner states in "bearded" photonic Kagome lattices
Limin Song, Domenico Bongiovanni, Zhichan Hu +6
Kagome lattices represent an archetype of intriguing physics, attracting a great deal of interest in different branches of natural sciences, recently in the context of topological…
Topologically protected vortex transport via chiral-symmetric disclination
Zhichan Hu, Domenico Bongiovanni, Ziteng Wang +6
Vortex phenomena are ubiquitous in nature, from vortices of quantum particles and living cells [1-7], to whirlpools, tornados, and spiral galaxies. Yet, effective control of vortex…
Deep learning empowered synthetic dimension dynamics: morphing of light into topological modes
Shiqi Xia, Sihong Lei, Daohong Song +7
Synthetic dimensions (SDs) opened the door for exploring previously inaccessible phenomena in high-dimensional synthetic space. However, construction of synthetic lattices with des…
Photonic realization of a generic type of graphene edge states exhibiting topological flat band
Shiqi Xia, Yongsheng Liang, Liqin Tang +3
Cutting a honeycomb lattice (HCL) can end up with three types of edges (zigzag, bearded and armchair), as is well known in the study of graphene edge states. Here we theoretically…
Mapping and manipulation of topological singularities: from photonic graphene to T-graphene
Sihong Lei, Shiqi Xia, Junqian Wang +6
Topological singularities (TSs) in momentum space give rise to intriguing fundamental phenomena as well as unusual material properties, attracting a great deal of interest in the p…
Photonic p-orbital higher-order topological insulators
Yahui Zhang, Domenico Bongiovanni, Ziteng Wang +9
The orbital degrees of freedom play a pivotal role in understanding fundamental phenomena in solid-state materials as well as exotic quantum states of matter including orbital supe…
Symmetry-protected higher-order exceptional points in staggered flatband rhombic lattices
Yingying Zhang, Shiqiang Xia, Xingdong Zhao +9
Higher-order exceptional points (EPs), which appear as multifold degeneracies in the spectra of non-Hermitian systems, are garnering extensive attention in various multidisciplinar…