Soliton and Soliton-Pair as the Intrinsic Phonon Localized Modes in an Anharmonic Monoatomic Chain
HUANG Guoxiang, LI Hongfang, DAI Xianxi
Department of Physics, Fudan University, Shanghai 200433
Soliton and Soliton-Pair as the Intrinsic Phonon Localized Modes in an Anharmonic Monoatomic Chain
HUANG Guoxiang;LI Hongfang;DAI Xianxi
Department of Physics, Fudan University, Shanghai 200433
关键词 ：
63.20.Ry ,
63.20.Pw
Abstract ： With the use of coherent-state method, a quantum approach for the intrinsic phonon localized modes in an anharmonic monoatomic chain is given. It is shown that the envelope soliton with zerogroup velocity can exist in the lattice and that the frequency of carrier wave is above the top of the frequency band. A new type of the intrinsic phonon localized mode which we call the soliton-pair intrinsic localized mode in the chain is also reported.
Key words ：
63.20.Ry
63.20.Pw
出版日期: 1992-03-01
引用本文:
HUANG Guoxiang;LI Hongfang;DAI Xianxi. Soliton and Soliton-Pair as the Intrinsic Phonon Localized Modes in an Anharmonic Monoatomic Chain[J]. 中国物理快报, 1992, 9(3): 151-154.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1992/V9/I3/151
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1992, Vol. 9 
