Volume 67, Number 1, July 2004
|Page(s)||130 - 136|
|Section||Interdisciplinary physics and related areas of science and technology|
|Published online||01 June 2004|
Attraction and unbinding of like-charged rods
Sektion Physik, LMU - Theresienstr. 37, D-80333 München, Germany
2 MPI für Polymerforschung - Ackermannweg 10, D-55128 Mainz, Germany
Accepted: 28 April 2004
We investigate the effective interaction between two like-charged rods in the regime of large coupling parameters using both Molecular Dynamics simulation techniques and the recently introduced strong-coupling theory. We obtain attraction between the rods for elevated Manning parameters accompanied by an equilibrium surface-to-surface separation of the order of the Gouy-Chapman length. A continuous unbinding between the rods is predicted at a threshold Manning parameter .
PACS: 87.15.-v – Biomolecules: structure and physical properties / 61.20.Ja – Computer simulation of liquid structure / 87.15.Nn – Properties of solutions; aggregation and crystallization of macromolecules
© EDP Sciences, 2004
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