Effects of quantum lattice fluctuations on multiquanta Davydov-like solitons in a molecular chain
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The dressing effect due to the quantum nature of phonons may cause the creation of bound states of several vibrons in the molecular chain. The possibility of creating soliton states of this type is discussed for the simple Frohlich one-dimensional model. The regions of the system parameter space where different mechanisms dominate the behaviour of such entities are characterized.