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Antiferromagnetic Resonance Revisited: Dissipative Coupling without Dissipation
Yutian Wang, Jiang Xiao
The antiferromagnet is a closed Hermitian system, we find that its excitations, even in the absence of dissipation, can be viewed as a non-Hermitian system with dissipative couplin…
Spin wave driven domain wall motion in easy-plane ferromagnets: a particle perspective
Jin Lan, Jiang Xiao
In easy-plane ferromagnets, we show that the interplay between a domain wall and a spin wave packet can be formulated as the collision of two massive particles with a gravity-like…
Giant spin transfer torque in atomically thin magnetic bilayers
Weihao Cao, Matisse Wei-Yuan Tu, Jiang Xiao +1
In cavity quantum electrodynamics, the multiple reflections of a photon between two mirrors defining a cavity is exploited to enhance the light-coupling of an intra-cavity atom. We…
Unconventional magnon excitation by off-resonant microwaves
H. Y. Yuan, Shasha Zheng, Qiongyi He +2
It is widely recognized that a physical system can only respond to a periodic driving significantly when the driving frequency matches the normal mode frequency of the system, whic…
Dynamical magnetoelectric coupling in axion insulator thin films
Zhaochen Liu, Jiang Xiao, Jing Wang
Axion insulator is an exotic magnetic topological insulator with zero Chern number but a nonzero quantized Chern-Simons magnetoelectric coupling. A conclusive experimental evidence…
A loop theory for the input-output problems in cavities
H. Y. Yuan, Weichao Yu, Jiang Xiao
The input-output formalism is the basis to study the response of an optical cavity to the external stimulations. The existing theories usually handle cavity systems with only one i…