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We present a self-contained theory for the mechanical response of DNA in single molecule experiments. Our model is based on a 1D continuum description of the DNA molecule and accounts both for its elasticity and for DNA-DNA electrostatic…

Biomolecules · Quantitative Biology 2015-05-13 N. Clauvelin , B. Audoly , S. Neukirch

A statistical mechanical description of flexible and semi-flexible polymer chains in a poor solvent is developed in the constant force and constant distance ensembles. We predict the existence of many intermediate states at low temperatures…

Soft Condensed Matter · Physics 2007-05-23 Sanjay Kumar , Iwan Jensen , Jesper L. Jacobsen , Anthony J. Guttmann

The closure of long equilibrated denaturation bubbles in DNA is studied using Brownian dynamics simulations. A minimal mesoscopic model is used where the double-helix is made of two interacting bead-spring freely rotating strands, with a…

Soft Condensed Matter · Physics 2015-06-12 Anil Kumar Dasanna , Nicolas Destainville , John Palmeri , Manoel Manghi

We study the effect of crowders on the melting profile of homogeneous and heterogeneous DNA molecules. We find out the melting profile of short DNA molecules and compare our findings with the experiments. We consider some random…

Soft Condensed Matter · Physics 2022-02-10 Neha Mathur , Amar Singh , Navin Singh

We study the entanglement entropy of gauged internal degrees of freedom in a two dimensional symmetric product orbifold CFT, whose configurations consist of $N$ strands sewn together into "long" strings, with wavefunctions symmetrized under…

High Energy Physics - Theory · Physics 2019-02-20 Vijay Balasubramanian , Ben Craps , Tim De Jonckheere , Gábor Sárosi

Because of the double-helical structure of DNA, in which two strands of complementary nucleotides intertwine around each other, a covalently closed DNA molecule with no interruptions in either strand can be viewed as two interlocked…

Biomolecules · Quantitative Biology 2015-05-13 Lauren A. Britton , Wilma K. Olson , Irwin Tobias

Storage and retrieval of the genetic information in cells is a dynamic process that requires the DNA to undergo dramatic structural rearrangements. DNA looping is a prominent example of such a structural rearrangement that is essential for…

Biological Physics · Physics 2015-01-07 Yi-Ju Chen , Stephanie Johnson , Peter Mulligan , Andrew J. Spakowitz , Rob Phillips

DNA storage is now being considered as a new archival storage method for its durability and high information density, but still facing some challenges like high costs and low throughput. By reducing sequencing sample size for decoding…

Information Theory · Computer Science 2025-04-22 Ruiying Cao , Xin Chen

It is well-established that many physical properties of DNA at sufficiently long length scales can be understood by means of simple polymer models. One of the most widely used elasticity models for DNA is the twistable worm-like chain…

Biomolecules · Quantitative Biology 2017-06-12 Enrico Skoruppa , Michiel Laleman , Stefanos Nomidis , Enrico Carlon

The model of the deformation of DNA macromolecule is developed with the accounting of two types of components of deformation: external and internal. External components describe the bend, twist and stretch of the double helix. The internal…

Soft Condensed Matter · Physics 2020-12-01 P. P. Kanevska , S. N. Volkov

Extrinsic faulting has been discussed previously within the so called difference method and random walk calculation. In this contribution is revisited under the framework of computational mechanics, which allows to derive expressions for…

Entanglement patterns reveal essential information on many-body states and provide a way to classify quantum phases of matter. However, experimental studies of many-body entanglement remain scarce due to their unscalable nature. The present…

Quantum Physics · Physics 2025-10-06 Szczepan Głodzik , Kim Pöyhönen , Ali G. Moghaddam , Teemu Ojanen

Considering vast amounts of genomic sequences of mostly unknown functionality, in-silico prediction of functional regions is an important enterprise. Many genomic browsers employ GC content, which was observed to be elevated in gene-rich…

Genomics · Quantitative Biology 2007-05-23 Dmitri Parkhomchuk

As the chief informational molecule of life, DNA is subject to extensive physical manipulations. The energy required to deform double-helical DNA depends on sequence, and this mechanical code of DNA influences gene regulation, such as…

Populations and Evolution · Quantitative Biology 2013-12-24 James Q. Boedicker , Hernan G. Garcia , Stephanie Johnson , Rob Phillips

Peaks in the probabilities of loops or bubbles, helical segments, and unzipping ends in melting DNA are found in this article using a peak finding method that maps the hierarchical structure of certain energy landscapes. The peaks indicate…

Biomolecules · Quantitative Biology 2007-05-23 E. Tostesen

The self-assembly of DNA-coated colloids into highly-ordered structures offers great promise for advanced optical materials. However, control of disorder, defects, melting, and crystal growth is hindered by the lack of a microscopic…

Soft Condensed Matter · Physics 2022-05-18 Fan Cui , Sophie Marbach , Jeana Aojie Zheng , Miranda Holmes-Cerfon , David J. Pine

Here we present the calculations of incoherent current flowing through the two-site molecular device as well as the DNA-based junction within the rate-equation approach. Few interesting phenomena are discussed in detail. Structural…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Kamil Walczak

It has been recently argued that the depletion attraction may play an important role in different aspects of the cellular organization, ranging from the organization of transcriptional activity in transcription factories to the formation of…

Biomolecules · Quantitative Biology 2015-05-13 M. Osella , M. Caselle

Sintering refers to particle coalescence by heat, which has been known as a thermal phenomenon involving all aspects of natural science for centuries. It is particularly important in heterogeneous catalysis because normally sintering…

It has been known for some time that the entropy of hot QCD is well reproduced by weak coupling techniques. These do not identify with perturbation theory, known to have poor convergence properties, but involve resumming the physics of hard…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jean-Paul Blaizot , Andreas Ipp , Anton Rebhan , Urko Reinosa