38 citations · 74 across the 7 of their papers we have counts for
7 papers
Higher-order Topological States in Chiral Split Magnons of Honeycomb Altermagnets
Xuan Guo, Meng-Han Zhang, Dao-Xin Yao
We theoretically explore higher-order topological magnons in collinear altermagnets, encompassing a dimensional hierarchy ranging from localized corner modes to propagating hinge e…
Dirac points and Weyl phase in a honeycomb altermagnet
Zhang Meng-Han, Guo Xuan, Dao-Xin Yao
We present unconventional nodal crossings in a two-dimensional (2D) collinear altermagnet, which are enforced by crystal symmetries to lock spin polarization and valley degrees of…
Direct observation of topological magnon edge states
Jihai Zhang, Meng-Han Zhang, Peigen Li +6
Magnon Chern insulators (MCIs) exhibit unique topological magnon band structures featuring chiral edge states. Direct observations of the topologically protected magnon edge states…
Topological magnons in a collinear altermagnet
Meng-Han Zhang, Lu Xiao, Dao-Xin Yao
We propose a model with Weyl magnons and nodal-line magnons () in a collinear altermagnet on the honeycomb lattice. Altermagnetic magnon bands can be realized by brea…
Type-II Dirac points and Dirac nodal loops on the magnons of square-hexagon-octagon lattice
Meng-Han Zhang, Dao-Xin Yao
We study topological magnons on an anisotropic square-hexagon-octagon (SHO) lattice which has been found by a two-dimensional Biphenylene network (BPN). We propose the concepts of…
Topological magnons on the triangular kagome lattice
Meng-Han Zhang, Dao-Xin Yao
We present the topology of magnons on the triangular kagome lattice (TKL) by calculating its Berry curvature, Chern number and edge states. In addition to the ferromagnetic state,…
Entanglement and spin squeezing of Bose condensed atoms
M. Zhang, Kristian Helmerson, L. You
We propose a direct, coherent coupling scheme that can create massively entangled states of Bose-Einstein condensed atoms. Our idea is based on an effective interaction between two…