Author

A. Johner

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Preprint Aug 2026

Electrostatic Persistence Length Revisited. II. Simulations and Comparison to Experiment

For decades, debate has surrounded the electrostatic persistence length (EPL) controlling local polyelectrolyte stiffening, centered on two competing power laws: the linear BJ prediction, $\textbf{l}_\mathrm{e} \sim r_\mathrm{D}$, and the quadratic OSF/KK scaling, $\textbf{l}_\mathrm{e} \sim r_\mathrm{D}^{2}$, where $r...

Alexey A. Gavrilov, A. Johner, Artem M. Rumyantsev · 0 citations

Preprint Aug 2026

Electrostatic Persistence Length Revisited. I. Theory

The problem of single-chain conformations of polyelectrolytes in salt-added dilute solutions, and the associated concept of the electrostatic persistence length $\textbf{l}_\mathrm{e}$, has remained unresolved for decades. To address this challenge, we develop a comprehensive scaling theory and corroborate it with simu...

Artem M. Rumyantsev, Alexey A. Gavrilov, A. Johner · 1 citation