Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2003-06-03
Physical Review Letters 91, 248301 (2003)
Physics
Condensed Matter
Soft Condensed Matter
4 pages, 3 figures
Scientific paper
10.1103/PhysRevLett.91.248301
The concept of effective depletion forces between two fixed big colloidal particles in a bath of small particles is generalized to a non-equilibrium situation where the bath of small Brownian particles is flowing around the big particles with a prescribed velocity. In striking contrast to the equilibrium case, the non-equilibrium forces violate Newton's third law, are non-conservative and strongly anisotropic, featuring both strong attractive and repulsive domains.
Dzubiella Joachim
Likos Christos N.
Löwen Hartmut
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