46 citations · 132 across the 7 of their papers we have counts for
7 papers
Nonlinear Topological Mechanics in Elliptically Geared Isostatic Metamaterials
Fangyuan Ma, Zheng Tang, Xiaotian Shi +5
Despite the extensive studies of topological systems, the experimental characterizations of strongly nonlinear topological phases have been lagging. To address this shortcoming, we…
Topological phase transition in disordered elastic quantum spin Hall system
Xiaotian Shi, Rajesh Chaunsali, Georgios Theocharis +3
We investigate the effect of disorder on topologically nontrivial states in a two dimension (2D) mechanical system. We first propose a quantum spin Hall (QSH) insulator based on an…
Disorder-induced topological phase transition in a 1D mechanical system
Xiaotian Shi, Ioannis Kiorpelidis, Rajesh Chaunsali +3
We numerically investigate the topological phase transition induced purely by disorder in a spring-mass chain. We employ two types of disorders - chiral and random types - to explo…
Spin-1 Weyl Point and Surface Arc State in a Chiral Phononic Crystal
Xiaotian Shi, Jinkyu Yang
Spin-1 Weyl point is formed by three bands touching at a single point in the three dimensional (3D) momentum space, with two of which show cone-like dispersion while the third band…
Elastic Weyl points and surface arc states in 3D structures
Xiaotian Shi, Rajesh Chaunsali, Feng Li +1
The study of Weyl points in electronic systems has inspired many recent researches in classical systems such as photonic and acoustic lattices. Here we show how the Weyl physics ca…
Bloch oscillation of elastic waves in the graded lattice of 3D-printed hollow elliptical cylinders
Hyunryung Kim, Xiaotian Shi, Eunho Kim +1
We study the Bloch oscillation of elastic waves in a chain composed of hollow elliptical cylinders (HECs). These HECs are 3D-printed in different wall thicknesses and are arranged…
Elastic Wannier-Stark Ladders and Bloch Oscillations in 1D Granular Crystals
Xiaotian Shi, Rajesh Chaunsali, Ying Wu +1
We report the numerical and experimental study of elastic Wannier-Stark Ladders and Bloch Oscillations in a tunable one-dimensional granular chain consisting of cylindrical particl…