TY - JOUR
T1 - Screened Hydrodynamic Interaction in a Narrow Channel
AU - Cui, Bianxiao
AU - Diamant, Haim
AU - Lin, Binhua
PY - 2002
Y1 - 2002
N2 - We study experimentally and theoretically the hydrodynamic coupling between Brownian colloidal particles diffusing along a linear channel. The quasi-one-dimensional confinement, unlike other constrained geometries, leads to a sharply screened interaction. Consequently, particles move in concert only when their mutual distance is smaller than the channel width, and two-body interactions remain dominant up to high particle densities. The coupling in a cylindrical channel is predicted to reverse sign at a certain distance, yet this unusual effect is too small to be currently detectable.
AB - We study experimentally and theoretically the hydrodynamic coupling between Brownian colloidal particles diffusing along a linear channel. The quasi-one-dimensional confinement, unlike other constrained geometries, leads to a sharply screened interaction. Consequently, particles move in concert only when their mutual distance is smaller than the channel width, and two-body interactions remain dominant up to high particle densities. The coupling in a cylindrical channel is predicted to reverse sign at a certain distance, yet this unusual effect is too small to be currently detectable.
UR - https://www.scopus.com/pages/publications/18744362777
U2 - 10.1103/PhysRevLett.89.188302
DO - 10.1103/PhysRevLett.89.188302
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C2 - 12398643
AN - SCOPUS:18744362777
SN - 0031-9007
VL - 89
JO - Physical Review Letters
JF - Physical Review Letters
IS - 18
ER -