Please use this identifier to cite or link to this item:
http://hdl.handle.net/1942/23714
Title: | On the Generalised Langevin Equation for a Rouse Bead in an Nonequilibrium Bath | Authors: | VANDEBROEK, Hans VANDERZANDE, Carlo |
Issue Date: | 2017 | Source: | JOURNAL OF STATISTICAL PHYSICS, 167(1), p. 14-28 | Abstract: | We present the reduced dynamics of a bead in a Rouse chain which is submerged in a bath containing a driving agent that renders it out-of-equilibrium. We first review the generalized Langevin equation of the middle bead in an equilibrated bath. Thereafter, we introduce two driving forces. Firstly, we add a constant force that is applied to the first bead of the chain. We investigate how the generalized Langevin equation changes due to this perturbation for which the system evolves towards a steady state after some time. Secondly, we consider the case of stochastic active forces which will drive the system to a nonequilibrium state. Includ- ing these active forces results in an extra contribution to the second fluctuation–dissipation relation. The form of this active contribution is analysed for the specific case of Gaussian, exponentially correlated active forces. We also discuss the resulting rich dynamics of the middle bead in which various regimes of normal diffusion, subdiffusion and superdiffusion can be present. | Notes: | The final publication is available at https://link.springer.com/article/10.1007%2Fs10955-017-1734-x | Keywords: | Rouse model; active processes; nonequilibrium reduced dynamics | Document URI: | http://hdl.handle.net/1942/23714 | ISSN: | 0022-4715 | e-ISSN: | 1572-9613 | DOI: | 10.1007/s10955-017-1734-x | ISI #: | 000396055600002 | Rights: | © Springer Science+Business Media New York 2017 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2018 |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
nGLE-2.pdf | Peer-reviewed author version | 335.56 kB | Adobe PDF | View/Open |
art%3A10.1007%2Fs10955-017-1734-x.pdf Restricted Access | Published version | 685.74 kB | Adobe PDF | View/Open Request a copy |
SCOPUSTM
Citations
6
checked on Sep 2, 2020
WEB OF SCIENCETM
Citations
16
checked on Sep 28, 2024
Page view(s)
16
checked on Sep 7, 2022
Download(s)
10
checked on Sep 7, 2022
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.