Soliton bands in anharmonic quantum lattices

J. C. Eilbeck, H. Gilhøj, Alwyn C. Scott

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


The number state method is used to calculate binding energies and effective masses from soliton bands for four quantum lattices: (i) the discrete nonlinear Schrödinger equation, (ii) the Ablowitz-Ladik equation (a q-boson model), (iii) a fermionic polaron model, and (iv) the Hubbard model. Results are expressed as functions of the number of freedoms and the ratio of anharmonicity to dispersion, and several physical interpretations are suggested. © 1993.

Original languageEnglish
Pages (from-to)229-235
Number of pages7
JournalPhysics Letters A
Issue number4
Publication statusPublished - 4 Jan 1993


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