Quantum signatures of breather-breather interactions

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The spectrum of the Quantum Discrete Nonlinear Schrödinger equation on a periodic 1D lattice shows some interesting detailed band structure which may be interpreted as the quantum signature of a two-breather interaction in the classical case. We show that this fine structure can be interpreted using degenerate perturbation theory.
4 pages, 4 figs

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Quantum Physics, Soft Condensed Matter, Pattern Formation and Solitons

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http://salesiana.dossiersoluciones.com/handle/123456789/91694

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/quant-ph/0312143
 http://arxiv.org/abs/quant-ph/0312143
 Phys Rev Letts. 93, 025504 (2004)
 doi:10.1103/PhysRevLett.93.025504

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arXiv