Temperature dependence of quantum correlations in 1D macromolecular chains
https://doi.org/10.17586/2220-8054-2019-10-2-141-146
Аннотация
We investigate the problem of generating quantum correlations between different sites of a macromolecular chain by vibronic excitation depending on the temperature. The influence of temperature on the model dynamics is taken into account by employing the partial-dressing method based on the modified LangFirsov unitary transformation under the assumption that the chain collective oscillations are in the thermal equilibrium state. To describe quantum correlations between the chain sites in the case of the initial single-vibronic excitation, we use two-time correlation functions of the second order and the logarithmic negativity as the degree of entanglement. We find that at certain temperatures for various model parameters time-stable entanglement can occur in the chain.
Об авторах
A. Chizhov
Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research ; Dubna State University
Россия
Россия
D. Chevizovich
Vinca Institute of Nuclear Sciences
Сербия
Сербия
Z. Ivic
Vinca Institute of Nuclear Sciences
Сербия
Сербия
S. Galovic´
Vinca Institute of Nuclear Sciences
Сербия
Сербия
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Рецензия
Для цитирования:
, , , . Наносистемы: физика, химия, математика. 2019;10(2):141-146. https://doi.org/10.17586/2220-8054-2019-10-2-141-146
For citation:
Chizhov A.V., Chevizovich D., Ivic Z., Galovic´ S. Temperature dependence of quantum correlations in 1D macromolecular chains. Nanosystems: Physics, Chemistry, Mathematics. 2019;10(2):141-146. https://doi.org/10.17586/2220-8054-2019-10-2-141-146
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