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Moving breathers in bent DNA with realistic parameters


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Opened Access Moving breathers in bent DNA with realistic parameters

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Author: Cuevas-Maraver, Jesús
Starikov, Evgeni B.
Archilla, Juan F. R.
Hennig, Dirk
Department: Universidad de Sevilla. Departamento de Física Aplicada I
Date: 2004-10-30
Published in: Modern Physics Letters B.,18 (25), 1319-1326
Document type: Article
Abstract: Recent papers have considered moving breathers (MBs) in DNA models including long range interaction due to the dipole moments of the hydrogen bonds. We have recalculated the value of the charge transfer when hydrogen bonds stretch using quant um chemical methods which takes into account the whole nucleoside pairs. We explore the conseque nces of this value on the properties of MBs, including the range of frequencies for which they exi st and their effective masses. They are able to travel through bending points with fairly large c urvatures provided that their kinetic energy is larger than a minimum energy which depends on the cu rvature. These energies and the corresponding velocities are also calculated in function o f the curvature
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DOI: 10.1142/S0217984904007840

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