Phase-Locking Diffusive Skin Effect  

作　　者：Pei-Chao Cao Yu-Gui Peng Ying Li Xue-Feng Zhu 曹培超;彭玉桂;李鹰;祝雪丰(School of Physics and Innovation Institute,Huazhong University of Science and Technology,Wuhan 430074,China;Interdisciplinary Center for Quantum Information,State Key Laboratory of Modern Optical Instrumentation,ZJU-Hangzhou Global Scientifc and Technological Innovation Center,Zhejiang University,Hangzhou 310027,China;International Joint Innovation Center,Key Laboratory of Advanced Micro/Nano Electronic Devices&Smart Systems of Zhejiang,The Electromagnetics Academy at Zhejiang University,Zhejiang University,Haining 314400,China;Jinhua Institute of Zhejiang University,Zhejiang University,Jinhua 321099,China)

机构地区：[1]School of Physics and Innovation Institute,Huazhong University of Science and Technology,Wuhan 430074,China [2]Interdisciplinary Center for Quantum Information,State Key Laboratory of Modern Optical Instrumentation,ZJU-Hangzhou Global Scientifc and Technological Innovation Center,Zhejiang University,Hangzhou 310027,China [3]International Joint Innovation Center,Key Laboratory of Advanced Micro/Nano Electronic Devices&Smart Systems of Zhejiang,The Electromagnetics Academy at Zhejiang University,Zhejiang University,Haining 314400,China [4]Jinhua Institute of Zhejiang University,Zhejiang University,Jinhua 321099,China

出　　处：《Chinese Physics Letters》2022年第5期94-99,共6页中国物理快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.92163123,11690030,and 11690032)。

摘　　要：We explore the exceptional point(EP)induced phase transition and amplitude/phase modulation in thermal diffusion systems.We start from the asymmetric coupling double-channel model,where the temperature field is unbalanced in the amplitude and locked in the symmetric phase.By extending into the one-dimensional tight-binding non-Hermitian lattice,we study the convection-driven phase locking and the asymmetric-couplinginduced diffusive skin effect with the high-order EPs in static systems.Combining convection and asymmetric couplings,we further show the phase-locking diffusive skin effect.Our work reveals the mechanism of controlling both the amplitude and phase of temperature fields in thermal coupling systems and has potential applications in non-Hermitian topology in thermal diffusion.

关 键 词：EFFECT COUPLING ASYMMETRIC 

分 类 号：O469[理学—凝聚态物理]