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- W2019918506 abstract "The energy of a Davydov soliton from a site-independent or $D2$ wave-function ansatz is obtained in the discrete chain model by using a simulated annealing approach to obtain the envelope of the soliton. Partial diagonalization [A. A. Eremko, Y. B. Gaididei, and A. A. Vakhnenko, Phys. Status Solidi B 127, 703 (1985)] of the Davydov Hamiltonian allows the soliton to be explicitly displayed in the Hamiltonian. The site-dependent or $D1$ Davydov wave-function ansatz is examined variationally using the simulated annealing approach. This approach leads efficiently to a minimum energy solution in the form of a uniform polaron state as required by translational symmetry. A simple form for the polaron state is displayed. We find no evidence for a minimum energy localized state such as is found from the more constrained $D2$ wave-function ansatz." @default.
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- W2019918506 date "1998-11-01" @default.
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- W2019918506 title "Davydov soliton and polarons in molecular chains: Partial Hamiltonian diagonalization" @default.
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- W2019918506 doi "https://doi.org/10.1103/physreve.58.6407" @default.
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