%0 Unpublished work %T Experimental verification of a modified fluctuation-dissipation relation for a micron-sized particle in a non-equilibrium steady state %+ Laboratoire de Physique de l'ENS Lyon (Phys-ENS) %A Gomez-Solano, Juan Ruben %A Petrosyan, Artyom %A Ciliberto, Sergio %A Chetrite, Raphael %A Gawedzki, Krzysztof %Z 4 pages %Z 05.40.-a %8 2009-03-05 %D 2009 %Z 0903.1075 %K Non-equilibrium steady state %K fluctuation-dissipation relations %K Langevin dynamics %Z Physics [physics]/Condensed Matter [cond-mat]/Statistical Mechanics [cond-mat.stat-mech]Preprints, Working Papers, ... %X A modified fluctuation-dissipation-theorem (MFDT) for a non-equilibrium steady state (NESS) is experimentally checked by studying the position fluctuations of a colloidal particle whose motion is confined in a toroidal optical trap. The NESS is generated by means of a rotating laser beam which exerts on the particle a sinusoidal conservative force plus a constant non-conservative one. The MFDT is shown to be perfectly verified by the experimental data. It can be interpreted as an equilibrium-like fluctuation-dissipation relation in the Lagrangian frame of the mean local velocity of the particle. %G English %2 https://ens-lyon.hal.science/ensl-00365952v1/document %2 https://ens-lyon.hal.science/ensl-00365952v1/file/article_MFDT_NESS_8.pdf %L ensl-00365952 %U https://ens-lyon.hal.science/ensl-00365952 %~ PRUNEL