We study theoretically the physical properties of Rouse polymers when a subset of monomers along the backbone is subjected to an additional driving force of exponentially correlated fluctuating noise. In other words, the polymers are made up of two kinds of particle, one of which has an additional coupling to an active bath that subjects those particles to extra forces. We analyze properties of these active polymers, such as the end to end distance and the local structure induced by active kicks. We then proceed to quantify how the dynamics of such polymers depend on the proportion of monomers which are being actively driven, and show how the dynamics transitions from the normal Rouse like behavior to substantially faster dynamics. Finally we analyze some of the non-equilibrium properties induced in these systems, such as the irreversibility.
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28 October 2018
Research Article|
October 29 2018
Properties of Rouse polymers with actively driven regions
Dino Osmanović
Dino Osmanović
Physics of Living Systems, Department of Physics, Massachusetts Institute of Technology
, Cambridge, Massachusetts 02139, USA
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J. Chem. Phys. 149, 164911 (2018)
Article history
Received:
June 22 2018
Accepted:
October 10 2018
Citation
Dino Osmanović; Properties of Rouse polymers with actively driven regions. J. Chem. Phys. 28 October 2018; 149 (16): 164911. https://doi.org/10.1063/1.5045686
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