3 papers
cond-mat.soft2026
Universal Loop Statistics from Active Extrusion with Kinetic Barriers
A. Chervinskaya, R. Metzler, K. E. Polovnikov
We develop a kinetic theory of cohesin-driven loop extrusion on a disordered chromatin track with transient barriers. In the stationary state, the mean loop size is shown to obey a…
cond-mat.soft2025
Universal scaling of segment fluctuations in polymer and chromatin dynamics
Kirill Polovnikov, Mehran Kardar
We demonstrate how center-of-mass (COM) motion influences polymer segment fluctuations. Cancellation of internal forces, together with spatially uncorrelated external noise, genera…
cs.CV2024
Generative inpainting of incomplete Euclidean distance matrices of trajectories generated by a fractional Brownian motion
Alexander Lobashev, Dmitry Guskov, Kirill Polovnikov
Fractional Brownian motion (fBm) features both randomness and strong scale-free correlations, challenging generative models to reproduce the intrinsic memory characterizing the und…