%0 Journal Article %T Finding bridges in packings of colloidal spheres %A Matthew C. Jenkins %A Mark D. Haw %A Gary C. Barker %A Wilson C. K. Poon %A Stefan U. Egelhaaf %J Physics %D 2010 %I arXiv %X We identify putative load-bearing structures (bridges) in experimental colloidal systems studied by confocal microscopy. Bridges are co-operative structures that have been used to explain stability and inhomogeneous force transmission in simulated granular packings with a range of densities. We show that bridges similar to those found in granular simulations are present in real experimental colloidal packings. We describe critically the bridge-finding procedure for real experimental data and propose a new criterion-Lowest Mean Squared Separation (LSQS)-for selecting optimum stabilisations. %U http://arxiv.org/abs/1006.3405v1