Abstract
In this paper, we firstly derive non-Markovian operator Langevin equations of the Davydov monomer in its environment. Next, we replace the equations with the c-number quantum general Langevin equations (QGLEs) by calculating statistical and quantum averages of the operator Langevin equations. Then, by using the c-number QGLEs we investigate the evolutions of the subsystems amide-I and amide-site. The evolution of a parameter θ describing quantum entanglement of the coupling subsystems with continuous variable Hamiltonian has also been investigated. It is shown that there is certain entanglement between the amide-I and amide-site in the Davydov-Scott monomer.
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Liang, XT., Fan, H. Quantum entanglement between amide-I and amide-site in Davydov-Scott model. Eur. Phys. J. D 68, 13 (2014). https://doi.org/10.1140/epjd/e2013-40463-0
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DOI: https://doi.org/10.1140/epjd/e2013-40463-0