Zobrazeno 1 - 10
of 1 094
pro vyhledávání: '"Zhang, Yiqi"'
We propose a chiral bulk soliton in a nonlinear photonic lattice with decorated boundaries, presenting a novel approach to manipulate photonic transport without extensive bulk modifications. Unlike traditional methods that rely on topological edge an
Externí odkaz:
http://arxiv.org/abs/2407.08267
The type-II Dirac cone is a special feature of the band structure, whose Fermi level is represented by a pair of crossing lines. It has been demonstrated that such a structure is useful for investigating topological edge solitons, and more specifical
Externí odkaz:
http://arxiv.org/abs/2407.05097
Topological insulators are most frequently constructed using lattices with specific degeneracies in their linear spectra, such as Dirac points. For a broad class of lattices, such as honeycomb ones, these points and associated Dirac cones generally a
Externí odkaz:
http://arxiv.org/abs/2407.05086
Autor:
Kompanets, Victor O., Zhong, Hua, Zhang, Yiqi, Kartashov, Yaroslav V., Li, Yongdong, Zhuravitskii, Sergei A., Skryabin, Nikolay N., Dyakonov, Ivan V., Kalinkin, Alexander A., Kulik, Sergei P., Chekalin, Sergey V., Zadkov, Victor N.
Higher-order topological insulators (HOTIs) are unique materials hosting topologically protected states, whose dimensionality is at least by a factor of 2 lower than that of the bulk. Topological states in such insulators may be strongly confined in
Externí odkaz:
http://arxiv.org/abs/2402.01979
Publikováno v:
Physical Review Applied 20, 014012 (2023)
We show that one-dimensional Floquet trimer arrays with periodically oscillating waveguides support two different and co-existing types of topological Floquet edge states in two different topological gaps in Floquet spectrum. In these systems nontriv
Externí odkaz:
http://arxiv.org/abs/2309.07469
Autor:
Arkhipova, Antonina A., Zhang, Yiqi, Kartashov, Yaroslav V., Zhuravitskii, Sergei A., Skryabin, Nikolay N., Dyakonov, Ivan V., Kalinkin, Alexander A., Kulik, Sergei P., Kompanets, Victor O., Chekalin, Sergey V., Zadkov, Victor N.
Publikováno v:
Science Bulletin 68, 2017-2024 (2023)
Floquet systems with periodically varying in time parameters enable realization of unconventional topological phases that do not exist in static systems with constant parameters and that are frequently accompanied by appearance of novel types of the
Externí odkaz:
http://arxiv.org/abs/2307.12865
Autor:
Ren, Boquan, Arkhipova, A. A., Zhang, Yiqi, Kartashov, Y. V., Wang, Hongguang, Zhuravitskii, S. A., Skryabin, N. N., Dyakonov, I. V., Kalinkin, A. A., Kulik, S. P., Kompanets, V. O., Chekalin, S. V., Zadkov, V. N.
Publikováno v:
Light: Science and Applications 12, 194 (2023)
Introduction of controllable deformations into periodic materials that lead to disclinations in their structure opens novel routes for construction of higher-order topological insulators hosting topological states at disclinations. Appearance of thes
Externí odkaz:
http://arxiv.org/abs/2304.11936
Publikováno v:
Chaos, Solitons and Fractals 166, 113010 (2023)
Topological edge states form at the edges of periodic materials with specific degeneracies in their modal spectra, such as Dirac points, under the action of effects breaking certain symmetries of the system. In particular, in Floquet topological insu
Externí odkaz:
http://arxiv.org/abs/2212.04124
Publikováno v:
APL Photon. 8, 016101 (2023)
Higher-order topological insulators are unusual materials that can support topologically protected states, whose dimensionality is lower than the dimensionality of the structure at least by 2. Among the most intriguing examples of such states are zer
Externí odkaz:
http://arxiv.org/abs/2212.04042
Autor:
Tang, Qian, Ren, Boquan, Kompanets, Victor O., Kartashov, Yaroslav V., Li, Yongdong, Zhang, Yiqi
Publikováno v:
Opt. Express 29, 39755-39765 (2021)
We predict the existence and study properties of the valley Hall edge solitons in a composite photonic graphene with a domain wall between two honeycomb lattices with broken inversion symmetry. Inversion symmetry in our system is broken due to detuni
Externí odkaz:
http://arxiv.org/abs/2209.01441