Details

Autor(en) / Beteiligte

• Baiesi, M
• Orlandini, E
• Stella, A L
• Zonta, F

Titel

Topological signatures of globular polymers

Ist Teil von

• Physical review letters, 2011-06, Vol.106 (25), p.258301-258301, Article 258301

Ort / Verlag

United States

Erscheinungsjahr

2011

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• 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.