A breather-like localized mode in a Fermi-Pasta-Ulam lattice interacting with an electron

Y. Zolotaryuk; J. C. Eilbeck

doi:10.1088/0953-8984/10/21/012

A breather-like localized mode in a Fermi-Pasta-Ulam lattice interacting with an electron

Y. Zolotaryuk, J. C. Eilbeck

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

A theoretical study in the framework of a variational approach is presented for the Fermi-Pasta-Ulam (FPU) chain interacting with an extra electron. Standing three-component soliton solutions which describe coupled states of an acoustic polaron with longitudinal lattice vibrations are found. This result is confirmed by numerical simulations and extended qualitatively to a chain with a realistic inter-particle potential of a general form.

Original language	English
Pages (from-to)	4553-4564
Number of pages	12
Journal	Journal of Physics: Condensed Matter
Volume	10
Issue number	21
DOIs	https://doi.org/10.1088/0953-8984/10/21/012
Publication status	Published - 1 Jun 1998

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title = "A breather-like localized mode in a Fermi-Pasta-Ulam lattice interacting with an electron",

abstract = "A theoretical study in the framework of a variational approach is presented for the Fermi-Pasta-Ulam (FPU) chain interacting with an extra electron. Standing three-component soliton solutions which describe coupled states of an acoustic polaron with longitudinal lattice vibrations are found. This result is confirmed by numerical simulations and extended qualitatively to a chain with a realistic inter-particle potential of a general form.",

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N2 - A theoretical study in the framework of a variational approach is presented for the Fermi-Pasta-Ulam (FPU) chain interacting with an extra electron. Standing three-component soliton solutions which describe coupled states of an acoustic polaron with longitudinal lattice vibrations are found. This result is confirmed by numerical simulations and extended qualitatively to a chain with a realistic inter-particle potential of a general form.

AB - A theoretical study in the framework of a variational approach is presented for the Fermi-Pasta-Ulam (FPU) chain interacting with an extra electron. Standing three-component soliton solutions which describe coupled states of an acoustic polaron with longitudinal lattice vibrations are found. This result is confirmed by numerical simulations and extended qualitatively to a chain with a realistic inter-particle potential of a general form.

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A breather-like localized mode in a Fermi-Pasta-Ulam lattice interacting with an electron

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