Direct measurement of three-body interactions
M. Brunner, J. Dobnikar, H.H. von Gr\"unberg, and C. Bechinger
TL;DR
This paper experimentally measures three-body interactions among charged colloidal particles, revealing attractive forces comparable to pair-interactions, supported by numerical calculations that align well with the experimental data.
Contribution
It provides the first direct measurement of three-body interactions in colloidal systems and compares experimental results with numerical simulations.
Findings
Three-body interactions are attractive.
They are similar in magnitude and range to pair-interactions.
Numerical calculations agree well with experimental data.
Abstract
Three-body interactions have been measured among three charged colloidal particles in deionized solvent. Two of the particles have been confined to an optical line-trap while the third one was approached by means of a focused laser beam. The experimentally determined three-body interactions are attractive and roughly of the same magnitude and range as the pair-interactions. In addition, numerical calculations have been performed, which show good agreement with the experimental results.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.