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Torque Detection using Brownian FluctuationsPhysical Review Letters, Vol. 97, No. 21. (2006)
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Find related articles from these CiteULike users Find related articles with these CiteULike tags AbstractWe report the statistical analysis of the movement of a submicron particle confined in a harmonic potential in the presence of a torque. The absolute value of the torque can be found from the auto- and cross-correlation functions of the particle's coordinates. We experimentally prove this analysis by detecting the torque produced onto an optically trapped particle by an optical beam with orbital angular momentum.
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