101 citations · 191 across the 14 of their papers we have counts for
14 papers
Imaginary Gauge Fields for One-Way Transparency and Absorption in a Passive Metasurface
Qingdong Yang, Zhongfu Li, Xinhua Wen +3
Electromagnetic nonreciprocity enables waves to respond differently when their propagation direction is reversed, forming the basis of isolation, directional routing, and asymmetri…
Quantized decay charges in non-Hermitian networks characterized by directed graphs
Wenwen Liu, Junyao Wu, Li Zhang +6
Non-Hermitian physics has unveiled a realm of exotic phenomena absent in Hermitian systems, with the non-Hermitian skin effect (NHSE) showcasing boundary-localized eigenstates driv…
Adiabaticity violation under arbitrarily slow evolution
Oubo You, Zhaoqi Jiang, Jinhui Shi +3
The quantum adiabatic theorem, a cornerstone of quantum mechanics, asserts that a gapped quantum system remains in its instantaneous eigenstate during sufficiently slow evolution,…
Shortcuts to adiabatic non-Abelian braiding on silicon photonic chips
Wange Song, Xuanyu Liu, Jiacheng Sun +6
The non-Abelian braiding describes the exchange behavior of anyons, which can be leveraged to encode qubits for quantum computing. Recently, this concept has been realized in class…
Observation of Co-propagating Chiral Zero Modes in Magnetic Photonic Crystals
Zhongfu Li, Shaojie Ma, Shuwei Li +6
Topological singularities, such as Weyl points and Dirac points, can give rise to unidirectional propagation channels known as chiral zero modes (CZMs) when subject to a magnetic f…
Tellegen responses in metamaterials
Qingdong Yang, Xinhua Wen, Zhongfu Li +2
Tellegen medium has long been a topic of debate, with its existence being contested over several decades. It was first proposed by Tellegen in 1948 and is characterized by a real-v…
Pure skin effect obeying power partition in directed graphs
Wenwen Liu, Oubo You, Bumki Min +1
Non-Hermitian physics has received great attention recently. In particular, band structures in non-Hermitian systems can be engineered to exhibit various topological effects. Among…
Realization of Non-Hermitian Hopf Bundle Matter
Yung Kim, Hee Chul Park, Minwook Kyung +6
Line excitations in topological phases are a subject of particular interest because their mutual linking structures encode robust topological information of matter. It has been rec…
Diverse surface waves supported by bianisotropic metasurfaces
Oubo You, Wenlong Gao, Yachao Liu +2
Surface waves supported by structured metallic surfaces, i.e. metasurfaces, have drawn wide attention recently. They are promising for various applications ranging from integrated…
Observation of Non-Abelian Thouless Pump
Oubo You, Shanjun Liang, Biye Xie +4
Thouless pump is a one-dimensional dynamic topological effect that stems from the same topological mechanism as the renowned two-dimensional Chern insulators, with one momentum dim…
Topological Disclination Pump
Bi-Ye Xie, Oubo You, Shuang Zhang
A topological pump enables robust transport of quantized particles when the system parameters are varied in a cyclic process. In previous studies, topological pump was achieved inh…
Vortical Reflection and Spiraling Fermi Arcs with Weyl Metamaterials
Hua Cheng, Wenlong Gao, Yangang Bi +10
Scatterings and transport in Weyl semimetals have caught growing attention in condensed matter physics, with observables including chiral zero modes and the associated magnetoresis…
Observation of non-Abelian nodal links in photonics
Erchan Yang, Biao Yang, Oubo You +8
In crystals, two bands may cross each other and form degeneracies along a closed loop in the three-dimensional momentum space, which is called nodal line. Nodal line degeneracy can…
Fano-resonance boosted cascaded field enhancement in a plasmonic nanoparticle-in-cavity nanoantenna array and its SERS application
Zhendong Zhu, Benfeng Bai, Oubo You +2
Cascaded optical field enhancement (CFE) can be realized in some specially designed multiscale plasmonic nanostructures, where the generation of extremely strong field at nanoscale…