Direct measurement of shear-induced cross-correlations of Brownian motion

Physics – Condensed Matter – Statistical Mechanics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.103.230602

Shear-induced cross-correlations of particle fluctuations perpendicular and along stream-lines are investigated experimentally and theoretically. Direct measurements of the Brownian motion of micron-sized beads, held by optical tweezers in a shear-flow cell, show a strong time-asymmetry in the cross-correlation, which is caused by the non-normal amplification of fluctuations. Complementary measurements on the single particle probability distribution substantiate this behavior and both results are consistent with a Langevin model. In addition, a shear-induced anti-correlation between orthogonal random-displacements of two trapped and hydrodynamically interacting particles is detected, having one or two extrema in time, depending on the positions of the particles.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Direct measurement of shear-induced cross-correlations of Brownian motion does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Direct measurement of shear-induced cross-correlations of Brownian motion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct measurement of shear-induced cross-correlations of Brownian motion will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-12459

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.