| Issue |
Europhys. Lett.
Volume 67, Number 1, July 2004
|
|
|---|---|---|
| Page(s) | 130 - 136 | |
| Section | Interdisciplinary physics and related areas of science and technology | |
| DOI | https://doi.org/10.1209/epl/i2003-10275-y | |
| Published online | 01 June 2004 | |
Attraction and unbinding of like-charged rods
1
Sektion Physik, LMU - Theresienstr. 37, D-80333 München, Germany
2
MPI für Polymerforschung - Ackermannweg 10, D-55128 Mainz, Germany
Received:
17
November
2003
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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