Large polarons in dry DNA: temperature and anharmonic effects
1 University of Belgrade, “Vinča” Institute of Nuclear Sciences, Laboratory for Theoretical and Condensed Matter Physics-020, P.O. Box 522, 11001 Belgrade, Serbia
2 University of Belgrade, “Vinča” Institute of Nuclear Sciences, Laboratory for Nuclear and Plasma Physics-011, P.O. Box 522, 11001, Belgrade, Serbia
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We study the influence of temperature on large polarons in DNA molecules. Employing the mean field approximation we derive the slight generalization of the SSH Hamiltonian with temperature dependent parameters. It was found that the degree of the modification of system parameters is very weak at physiologically relevant temperature which indicates that the free acoustic polarons as charge carriers may be responsible for DNA conductivity.
© Owned by the authors, published by EDP Sciences, 2012