Topological signatures of globular polymers

M. Baiesi*, E. Orlandini, A. L. Stella, F. Zonta

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


Simulations in which a globular ring polymer with delocalized knots is separated in two interacting loops by a slipping link, or in two noninteracting globuli by a wall with a hole, show how the minimal crossing number of the knots controls the equilibrium statistics. With slipping link the ring length is divided between the loops according to a simple law, but with unexpectedly large fluctuations. These are suppressed only for unknotted loops, whose length distribution always shows a fast power-law decay. We also discover and explain a topological effect interfering with that of surface tension in the globule translocation through a membrane nanopore.

Original languageEnglish
Article number258301
JournalPhysical Review Letters
Issue number25
Publication statusPublished - 24 Jun 2011
Externally publishedYes


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