Jian-Xin Zhu et al 2007 J. Phys.: Condens. Matter 19 136203 doi:10.1088/0953-8984/19/13/136203
Jian-Xin Zhu, K Ø Rasmussen, A V Balatsky and A R Bishop
Show affiliationsThere is increasing evidence for polaronic effects on charge localization and dynamics in DNA. The Peyrard–Bishop–Holstein model has been previously suggested as an appropriate model for the description of such effects. Here we report a self-consistent study of local electronic structure within this model for both homopolymer and realistic viral P5 promoter segments. Our results indicate that both the inter-base-pair stacking interaction and the electron filling can qualitatively influence the polaronic properties in a specific DNA sequence, including features of two distinct length scales and competition with sequence-disorder induced localization.
87.15.Cc Folding: thermodynamics, statistical mechanics, models, and pathways
87.15.A- Theory, modeling, and computer simulation
87.15.K- Molecular interactions; membrane-protein interactions
Issue 13 (4 April 2007)
Received 12 January 2007, in final form 8 February 2007
Published 12 March 2007
Jian-Xin Zhu et al 2007 J. Phys.: Condens. Matter 19 136203
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