Active Brownian particle in harmonic trap: exact computation of moments, and re-entrant transition

D Chaudhuri, A Dhar - Journal of Statistical Mechanics: Theory …, 2021 - iopscience.iop.org
We consider an active Brownian particle in a d-dimensional harmonic trap, in the presence
of translational diffusion. While the Fokker–Planck equation cannot in general be solved to …

Active Brownian particles: map** to equilibrium polymers and exact computation of moments

A Shee, A Dhar, D Chaudhuri - Soft Matter, 2020 - pubs.rsc.org
It is well known that the path probabilities of Brownian motion correspond to the equilibrium
configurational probabilities of flexible Gaussian polymers, while those of active Brownian …

End-to-end distribution for a wormlike chain in arbitrary dimensions

S Mehraeen, B Sudhanshu, EF Koslover… - Physical Review E …, 2008 - APS
We construct an efficient methodology for calculating wormlike chain statistics in arbitrary D
dimensions over all chain rigidities, from fully rigid to completely flexible. The structure of our …

Stretching multistate flexible chains and loops

G Noh, P Benetatos - Physical Review E, 2024 - APS
Polymer loop structure commonly appears in biological phenomena, such as DNA loo**
and DNA denaturation. When a chain forms a loop, its elastic behavior differs from that of an …

Morphological and dynamical properties of semiflexible filaments driven by molecular motors

N Gupta, A Chaudhuri, D Chaudhuri - Physical Review E, 2019 - APS
We consider an explicit model of a semiflexible filament moving in two dimensions on a
gliding assay of motor proteins, which attach to and detach from filament segments …

A semiflexible polymer in a gliding assay: reentrant transition, role of turnover and activity

A Shee, N Gupta, A Chaudhuri, D Chaudhuri - Soft Matter, 2021 - pubs.rsc.org
We consider a model of an extensible semiflexible filament moving in two dimensions on a
motility assay of motor proteins represented explicitly as active harmonic linkers. Their …

How to understand the ensemble equivalence during stretching of a single macromolecule

VA Ivanov, LI Klushin, AM Skvortsov - Polymer Science Series A, 2012 - Springer
In this paper, we discuss the elastic behavior of an isolated macromolecule in conjugated
and non-conjugated ensembles during different modes of applying a mechanical force to the …

Inequivalence of fixed-force and fixed-extension statistical ensembles for a flexible polymer tethered to a planar substrate

S Dutta, P Benetatos - Soft Matter, 2018 - pubs.rsc.org
Recent advances in single macromolecule experiments have sparked interest in the
ensemble dependence of force–extension relations. The thermodynamic limit may not be …

Statistical ensemble inequivalence for flexible polymers under confinement in various geometries

S Dutta, P Benetatos - Soft Matter, 2020 - pubs.rsc.org
The problem of statistical ensemble inequivalence for single polymers has been the subject
of intense research. In a recent publication, we show that even though the force–extension …

Thermodynamic instability of topological black holes in Gauss-Bonnet gravity with a generalized electrodynamics

SH Hendi, S Panahiyan - Physical Review D, 2014 - APS
Motivated by the string corrections on the gravity and electrodynamics sides, we consider a
quadratic Maxwell invariant term as a correction of the Maxwell Lagrangian to obtain exact …