Inelastic quantum transport in a ladder model: Measurements of DNA conduction and comparison to theory

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dc.creatorGutierrez, R.
dc.creatorMohapatra, S.
dc.creatorCohen, H.
dc.creatorPorath, D.
dc.creatorCuniberti, G.
dc.date2006-04-19
dc.date2006-07-14
dc.date.accessioned2026-07-07T07:05:36Z
dc.date.available2026-07-07T07:05:36Z
dc.descriptionWe investigate quantum transport characteristics of a ladder model, which effectively mimics the topology of a double-stranded DNA molecule. We consider the interaction of tunneling charges with a selected internal vibrational degree of freedom and discuss its influence on the structure of the current-voltage characteristics. Further, molecule-electrode contact effects are shown to dramatically affect the orders of magnitude of the current. Recent electrical transport measurements on suspended DNA oligomers with a complex base-pair sequence, revealing strikingly high currents, are also presented and used as a reference point for the theoretical modeling. A semi-quantitative description of the measured I-V curves is achieved, suggesting that the coupling to vibrational excitations plays an important role in DNA conduction.
dc.description10 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0604435
dc.identifierhttp://arxiv.org/abs/cond-mat/0604435
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/109719
dc.subjectSoft Condensed Matter
dc.subjectMesoscale and Nanoscale Physics
dc.titleInelastic quantum transport in a ladder model: Measurements of DNA conduction and comparison to theory
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