Mixing of four chains in a small confinement volume (for a relatively large volume fraction of chains, ϕ = 0.1) varying bead-bead interactions, ϵ.

(a) Simulation snapshots of the mixing of four chains as a function of interaction strength, ϵ, for persistence lengths l_p = 1 bead and l_p = 5 beads. (b) The scaling exponent β of the time dependence of the chromosome mixing index. (c) The scaling exponent γ of the contact probability as a function of ϵ for l_p = 1 (gray color) and l_p = 5 (black color).

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