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Active diffusion of model chromosomal loci driven by athermal noise
Takahiro Sakaue1, Takuya Saito2
1Department of Physics, Kyushu University, Fukuoka 819-0395, Japan. sakaue@phys.kyushu-u.ac.jp.
Abstract:
Active diffusion, i.e., fluctuating dynamics driven by athermal noise, is found in various out-of-equilibrium systems. Here we discuss the nature of the active diffusion of tagged monomers in a flexible polymer. A scaling argument based on the notion of tension propagation clarifies how the polymeric effect is reflected in the anomalous diffusion exponent, which may be of relevance to the dynamics of chromosomal loci in living cells.
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