Analysis of the Interplay of Quantum Phases and Nonlinearity Applied to Dimers with Anharmonic Interactions

Details Analysis of the Interplay of Quantum Phases and Nonlinearity Applied to Dimers with Anharmonic Interactions Analysis of the Interplay of Quantum Phases and Nonlinearity Applied to Dimers with Anharmonic Interactions

1997-06-10

arxiv.org/abs/cond-mat/9706093v1

Physics

Condensed Matter

Soft Condensed Matter

RevTeX, 3 figures included. Submitted to Phys. Lett. A

Scientific paper

10.1016/S0375-9601(97)00586-0

We extend our analysis of the effects of the interplay of quantum phases and nonlinearity to address saturation effects in small quantum systems. We find that initial phases dramatically control the dependence of self-trapping on initial asymmetry of quasiparticle population and can compete or act with nonlinearity as well as saturation effects. We find that there is a minimum finite saturation value in order to obtain self-trapping that crucially depends on the initial quasiparticle phases and present a detailed phase-diagram in terms of the control parameters of the system: nonlinearity and saturation.

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