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Phys. Rev. E 70, 011801 (2004) [4 pages]

Writhe distribution of stretched polymers

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Supurna Sinha*
Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad 211019, Indiaand Raman Research Institute, Bangalore 560080, India

Received 27 February 2004; published 1 July 2004

Motivated by experiments in which single deoxyribose nucleic acid molecules are stretched and twisted we consider a perturbative approach around very high forces, where we determine the writhe distribution in a simple, analytically tractable model. Our results are in agreement with recent simulations and experiments.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.70.011801
DOI:
10.1103/PhysRevE.70.011801
PACS:
36.20.−r, 82.37.−j, 87.15.−v

*Electronic address: supurna@rri.res.in