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With the Su-Schrieffer-Heeger model involving the effects of solvent polarization and external electric field, we show that bipolaron maybe more stable than two polarons when a dication induced into a DNA stack. Under the high electric…

Soft Condensed Matter · Physics 2009-11-11 J. H. Wei , L. X. Wang , K. S. Chan , YiJing Yan

We study the anisotropic electronic properties of 2D SnS, an analogue of phosphorene, grown by physical vapor transport. With transmission electron microscope and polarized Raman spectroscopy, we identify the zigzag and armchair directions…

Mesoscale and Nanoscale Physics · Physics 2016-12-30 Zhen Tian , Chenglei Guo , Mingxing Zhao , Ranran Li , Jiamin Xue

Gel electrophoresis allows to separate knotted DNA (nicked circular) of equal length according to the knot type. At low electric fields, complex knots being more compact, drift faster than simpler knots. Recent experiments have shown that…

Biological Physics · Physics 2009-11-11 C. Weber , A. Stasiak , M. Fleurant , P. De Los Rios , G. Dietler

We study the conductivity of granular superconductors in the weak coupling insulating regime. We show that it is governed by the hopping of either electrons or Cooper pairs depending on the relation between the superconducting gap and the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. V. Lopatin , V. M. Vinokur

We develop a new approach to derive single state tight binding (SSTB) model for electron transport in the vicinity of valence-conduction bands of poly(G)-poly(C) and poly(A)-poly(T) DNA. The SSTB parameters are derived from {\it first…

Biological Physics · Physics 2007-05-23 H. Mehrez M. P. Anantram

We analyze the transport properties of contacts between unconventional superconductor and normal diffusive metal in the framework of the extended circuit theory. We obtain a general boundary condition for the Keldysh-Nambu Green's functions…

Superconductivity · Physics 2009-11-10 Y. Tanaka , Yu. V. Nazarov , A. A. Golubov , S. Kashiwaya

Nodes in ad hoc networks with randomly oriented directional antenna patterns typically have fewer short links and more long links which can bridge together otherwise isolated subnetworks. This network feature is known to improve overall…

Information Theory · Computer Science 2017-06-29 Orestis Georgiou , Carl P. Dettmann , Justin P. Coon

Understanding the three-dimensional (3D) structure and stability of DNA is fundamental for its biological function and the design of novel drugs. In this study, we introduce an improved coarse-grained (CG) model, incorporating a more…

Soft Condensed Matter · Physics 2025-01-22 Xunxun Wang , Ya-Zhou Shi

We study migration of DNA molecules through a microchannel with a series of electric traps controlled by an ac electric field. We describe the motion of DNA based on Brownian dynamics simulations of a beads-spring chain. Our simulation…

Soft Condensed Matter · Physics 2013-05-29 Shin-ichiro Nagahiro , Satoyuki Kawano , Hidetoshi Kotera

A phenomenological model based on the three-dimensional theory of nonlinear elasticity is developed to describe the phenomenon of overstretching in the force-extension curve for dsDNA. By using the concept of a material with multiple…

Biomolecules · Quantitative Biology 2008-02-25 Ray W. Ogden , Giuseppe Saccomandi , Ivonne Sgura

The electrical properties of DNA molecules are investigated by charge injection and electric force microscopy experiments. Prior to injection, DNA molecules exhibit a weak positively charged state. We probe the electrical behaviour of DNA…

Materials Science · Physics 2009-11-10 Thomas Heim , Thierry Melin , Dominique Deresmes , Dominique Vuillaume

RNA sequencing (RNA-seq) enables characterization and quantification of individual transcriptomes as well as detection of patterns of allelic expression and alternative splicing. Current RNA-seq protocols depend on high-throughput…

Genomics · Quantitative Biology 2015-06-19 Hyunghoon Cho , Joe Davis , Xin Li , Kevin S. Smith , Alexis Battle , Stephen B. Montgomery

The protonic conductivity in the hydrogen bonded chains is investigated theoretically in the framework of the two-stage transport model. The strong interactions with optical phonon stretching mode are considered. We obtain the transition…

Materials Science · Physics 2009-10-31 Natalie Pavlenko

We present a trajectory-resolved framework for charge transport in graphene and related two-dimensional carbon systems beyond the ideal ballistic and fully coherent limits. Transport is described by kinetic Monte Carlo hopping on a…

Mesoscale and Nanoscale Physics · Physics 2026-04-20 J. P. Dadario Pereira , Raphael Tromer , Luiz A. Ribeiro Junior , Douglas S. Galvao

One-particle interchain hopping in a system of coupled Luttinger liquids is investigated by use of exact diagonalizations techniques. Firstly, the two chain problem of spinless fermions is studied in order to see the behaviour of the band…

Strongly Correlated Electrons · Physics 2009-10-30 S. Capponi , D. Poilblanc

The macroscopic curvature of double helical DNA induced by regularly repeated adenine tracts is well-known but still puzzling. Its physical origin remains controversial even though it is perhaps the best-documented sequence modulation of…

Biological Physics · Physics 2007-05-23 Alexey K. Mazur , Dimitri E. Kamashev

We conduct a comprehensive study of anomalous charge transport in the quantum sine--Gordon model. Employing the framework of Generalized Hydrodynamics, we compute Drude weights and Onsager matrices across a wide range of coupling strengths…

Statistical Mechanics · Physics 2026-01-23 Frederik Møller , Botond C. Nagy , Márton Kormos , Gábor Takács

The so called long range correlation properties of DNA sequences are studied using the variance analyses of the density distribution of a single or a group of nucleotides in a model independent way. This new method which was suggested…

Biological Physics · Physics 2007-05-23 A. K. Mohanty , A. V. S. S. Narayana Rao

We investigate theoretically 2D electronic transport in Si:P $\delta$-doped layers limited by charged-dopant scattering. Since the carrier density is approximately equal to the dopant impurity density, the density dependent transport shows…

Mesoscale and Nanoscale Physics · Physics 2013-03-21 E. H. Hwang , S. Das Sarma

The flexibility of short DNA chains is investigated via computation of the average correlation function between dimers which defines the persistence length. Path integration techniques have been applied to confine the phase space available…

Soft Condensed Matter · Physics 2018-10-19 Marco Zoli