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arXiv · 2201.00717

Polymers critical point originates Brownian non-Gaussian diffusion

Sankaran Nampoothiri·Enzo Orlandini·Flavio Seno·Fulvio Baldovin
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Abstract

We demonstrate that size fluctuations close to polymers critical point originate the non-Gaussian diffusion of their center of mass. Static universal exponents $\gamma$ and $\nu$ -- depending on the polymer topology, on the dimension of the embedding space, and on equilibrium phase -- concur to determine the potential divergency of a dynamic response, epitomized by the center of mass kurtosis. Prospects in experiments and stochastic modeling brought about by this result are briefly outlined.

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Sankaran Nampoothiri, Enzo Orlandini, Flavio Seno, Fulvio Baldovin. 2022-01-03. Polymers critical point originates Brownian non-Gaussian diffusion. https://doi.org/10.1103/physreve.104.l062501

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