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Trapping colloids near chemical stripes via critical Casimir forces
Matthias Tröndle, Olga Zvyagolskaya, Andrea Gambassi +4
We study theoretically and experimentally the solvent-mediated critical Casimir force acting on colloidal particles immersed in a binary liquid mixture of water and 2,6-lutidine an…
Influence of Noise on Force Measurements
Giovanni Volpe, Laurent Helden, Thomas Brettschneider +2
We demonstrate how the ineluctable presence of thermal noise alters the measurement of forces acting on microscopic and nanoscopic objects. We quantify this effect exemplarily for…
Experimental Accessibility of Generalized Fluctuation-Dissipation Relations for Nonequilibrium Steady States
Jakob Mehl, Valentin Blickle, Udo Seifert +1
We study the fluctuation-dissipation theorem for a Brownian particle driven into a nonequilibrium steady state experimentally. We validate two different theoretical variants of a g…