60 citations · 372 across the 19 of their papers we have counts for
9 papers · 1 filter
Exceptional points make an astroid in non-Hermitian Lieb lattice: evolution and topological protection
Yi-Xin Xiao, Kun Ding, Ruo-Yang Zhang +2
An astroid-shaped loop of exceptional points (EPs), comprising four cusps, is found to spawn from the triple degeneracy point in the Brillouin zone (BZ) of a Lieb lattice with near…
Topological one-way large-area waveguide states in magnetic photonic crystals
Mudi Wang, Ruo-Yang Zhang, Lei Zhang +4
We have theoretically and experimentally achieved large-area one-way transport by using heterostructures consisting of a domain of an ordinary photonic crystal (PC) sandwiched betw…
Chiral transport of pseudo-spinors induced by synthetic gravitational field in photonic Weyl metamaterials
Hongwei Jia, Ruo-Yang Zhang, Wenlong Gao +2
Weyl particles exhibit chiral transport property under external curved space-time geometry. This effect is called chiral gravitational effect, which plays an important role in quan…
Robust acoustic pulling using chiral surface waves
Neng Wang, Ruo-Yang Zhang, C. T. Chan
We show that long-range and robust acoustic pulling can be achieved by using a pair of one-way chiral surface waves supported on the interface between two phononic crystals compose…
Optical pulling using topologically protected one-way-transport surface-arc waves
Neng Wang, Ruo-Yang Zhang, Qinghua Guo +2
This paper proposes a new method to achieve robust optical pulling of particles by using an air waveguide sandwiched between two chiral hyperbolic metamaterials. The pulling force…
Experimental observation of non-Abelian topological charges and bulk-edge correspondence
Qinghua Guo, Tianshu Jiang, Ruo-Yang Zhang +5
In the past decades, topological concepts have emerged to classify matter states beyond the Ginzburg-Landau symmetry breaking paradigm. The underlying global invariants are usually…