Observation of Intrinsically Localized Modes in a Discrete Low-Dimensional Material

Abstract

We report the experimental observation of intrinsic dynamically localized vibrational states in crystals of the highly nonlinear halide-bridged mixed-valence transition metal complex ͕͓Pt͑en͒ 2 ͔ ͓Pt͑en͒ 2 Cl 2 ͔ ͑ClO 4 ͒ 4 ͖, where en ethylenediamine. These states are identified by the distinctive structure and strong redshifts they impose upon the overtone resonance Raman spectra. Quantitative modeling of the observed redshifts is presented based on a nonadiabatic coupled electron-lattice model that self-consistently predicts strong nonlinearity and highly localized multiquanta bound states.[S0031-9007(99)08915-2]

Interaction of moving discrete breathers with vacancies

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Quantumq-breathers in a finite Bose-Hubbard chain: The case of two interacting bosons

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