典型文献
One-dimensional PT-symmetric acoustic heterostructure
文献摘要：
The explorations of parity-time(PT)-symmetric acoustics have resided at the frontier in physics,and the pre-existing accessing of exceptional points typically depends on Fabry-Perot resonances of the coupling interlayer sandwiched between balanced gain and loss components.Nevertheless,the concise PT-symmetric acoustic heterostructure,eliminating extra interactions caused by the interlayer,has not been researched in depth.Here we derive the generalized unitary relation for one-dimensional(1D)PT-symmetric heterostructure of arbitrary complexity,and demonstrate four disparate patterns of anisotropic transmission resonances(ATRs)accompanied by corresponding spontaneous phase transitions.As a special case of ATR,the occasional bidirectional transmission resonance reconsolidates the ATR frequencies that split when waves incident from opposite directions,whose spatial profiles distinguish from a unitary structure.The derived theoretical relation can serve as a predominant signature for the presence of PT symmetry and PT-symmetry-breaking transition,which may provide substantial support for the development of prototype devices with asymmetric acoustic responses.
文献关键词：
中图分类号：
作者姓名：
Hai-Xiao Zhang;Wei Xiong;Ying Cheng;Xiao-Jun Liu
作者机构：
Department of Physics,MOE Key Laboratory of Modern Acoustics,Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210093,China;School of Electrical and Information Engineering,Changzhou Institute of Technology,Changzhou 213032,China;State Key Laboratory of Acoustics,Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China
文献出处：
引用格式：
[1]Hai-Xiao Zhang;Wei Xiong;Ying Cheng;Xiao-Jun Liu-.One-dimensional PT-symmetric acoustic heterostructure)[J].中国物理B（英文版）,2022(12):457-462
A类：
ATRs,reconsolidates
B类：
One,dimensional,PT,heterostructure,explorations,parity,acoustics,have,resided,frontier,physics,existing,accessing,exceptional,points,typically,depends,Fabry,Perot,resonances,coupling,interlayer,sandwiched,between,balanced,gain,loss,components,Nevertheless,concise,eliminating,extra,interactions,caused,by,not,been,researched,depth,Here,generalized,unitary,relation,1D,arbitrary,complexity,demonstrate,four,disparate,patterns,anisotropic,transmission,accompanied,corresponding,spontaneous,phase,transitions,special,case,occasional,bidirectional,frequencies,that,split,when,waves,incident,from,opposite,directions,whose,spatial,profiles,distinguish,derived,theoretical,can,serve,predominant,signature,presence,symmetry,breaking,which,may,provide,substantial,support,development,prototype,devices,asymmetric,responses
AB值：
0.651759
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