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arXiv · 1304.0029

Weak Values Technique for Velocity Measurements

Gerardo I. Viza·Julián Martínez-Rincón·Gregory A. Howland·Hadas Frostig·Itay Shomroni·Barak Dayan·John C. Howell
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Abstract

In a recent letter, Brunner and Simon propose an interferometric scheme using imaginary weak values with a frequency-domain analysis to outperform standard interferometry in longitudinal phase shifts [N. Brunner and C. Simon, Phys. Rev. Lett {\bf105} (2010)]. Here we demonstrate an interferometric scheme combined with a time-domain analysis to measure longitudinal velocities. The technique employs the near-destructive interference of non-Fourier limited pulses, one Doppler shifted due to a moving mirror, in a Michelson interferometer. We achieve a velocity measurement of 400 fm/s and show our estimator to be efficient by reaching its Cramér-Rao bound.

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Gerardo I. Viza, Julián Martínez-Rincón, Gregory A. Howland, Hadas Frostig, Itay Shomroni, Barak Dayan, John C. Howell. 2013-05-14. Weak Values Technique for Velocity Measurements. https://doi.org/10.1364/ol.38.002949

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