Zobrazeno 1 - 10
of 262
pro vyhledávání: '"Tang, Liqin"'
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 within its unique band structure. Specifically, we find that the upper tw
Externí odkaz:
http://arxiv.org/abs/2310.11858
Autor:
Song, Limin, Bongiovanni, Domenico, Hu, Zhichan, Wang, Ziteng, Xia, Shiqi, Tang, Liqin, Song, Daohong, Morandotti, Roberto, Chen, Zhigang
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 crystalline insulators. Here, we demonstrate two distinct classes of c
Externí odkaz:
http://arxiv.org/abs/2310.03558
Autor:
Xia, Shiqi, Lei, Sihong, Song, Daohong, Di Lauro, Luigi, Alamgir, Imtiaz, Tang, Liqin, Xu, Jingjun, Morandotti, Roberto, Buljan, Hrvoje, Chen, Zhigang
Synthetic dimensions (SDs) opened the door for exploring previously inaccessible phenomena in high-dimensional synthetic space. However, construction of synthetic lattices with desired coupling properties is a challenging and unintuitive task, largel
Externí odkaz:
http://arxiv.org/abs/2304.14695
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 investigate and experimentally demonstrate a class of graphene edges,
Externí odkaz:
http://arxiv.org/abs/2302.01796
Autor:
Lei, Sihong, Xia, Shiqi, Wang, Junqian, Liu, Xiuying, Tang, Liqin, Song, Daohong, Xu, Jingjun, Buljan, Hrvoje, Chen, Zhigang
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 past decade. Recently, we have demonstrated universal momentum-to-real-
Externí odkaz:
http://arxiv.org/abs/2212.12127
Autor:
Zhang, Yingying, Xia, Shiqiang, Zhao, Xingdong, Qin, Lu, Feng, Xuejing, Qi, Wenrong, Jiang, Yajing, Lu, Hai, Song, Daohong, Tang, Liqin, Zhu, Zunlue, Liu, Yufang
Higher-order exceptional points (EPs), which appear as multifold degeneracies in the spectra of non-Hermitian systems, are garnering extensive attention in various multidisciplinary fields. However, constructing higher-order EPs still remains as a ch
Externí odkaz:
http://arxiv.org/abs/2206.00965
Autor:
Wang, Ziteng, Wang, Xiangdong, Hu, Zhichan, Bongiovanni, Domenico, Jukić, Dario, Tang, Liqin, Song, Daohong, Morandotti, Roberto, Chen, Zhigang, Buljan, Hrvoje
A hallmark of symmetry-protected topological phases (SPTs) are topologically protected boundary states, which are immune to perturbations that respect the protecting symmetry. It is commonly believed that any perturbation that destroys an SPT phase s
Externí odkaz:
http://arxiv.org/abs/2205.07285
Autor:
Song, Limin, Xie, Yuqing, Xia, Shiqi, Tang, Liqin, Song, Daohong, Rhim, Jun-Won, Chen, Zhigang
Noncontractible loop states (NLSs) are recently realized topological entity in flatband lattices, arising typically from band touching at a point where a flat band intersects one or more dispersive bands. There exists also band touching across a plan
Externí odkaz:
http://arxiv.org/abs/2204.13899
Autor:
Yan, Wenchao, Song, Daohong, Xia, Shiqi, Xie, Junfang, Tang, Liqin, Xu, Jingjun, Chen, Zhigang
Square-root higher-order topological insulators (HOTIs) are recently discovered new topological phases, with intriguing topological properties inherited from a parent lattice Hamiltonian. Different from conventional HOTIs, the square-root HOTIs typic
Externí odkaz:
http://arxiv.org/abs/2110.05091
Autor:
Xia, Shiqiang, Danieli, Carlo, Zhang, Yingying, Zhao, Xingdong, Tang, Liqin, Lu, Hai, Li, Denghui, Song, Daohong, Chen, Zhigang
We propose a scheme to realize parity-time (PT) symmetric photonic Lieb lattices of ribbon shape and complex couplings, thereby demonstrating the higher-order exceptional point (EP) and Landau-Zener Bloch (LZB) oscillations in presence of a refractiv
Externí odkaz:
http://arxiv.org/abs/2108.12602