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AC Stark shift noise in QND measurement arising from quantum fluctuations of light polarization

M. Auzinsh·D. Budker·D. F. Kimball·S. M. Rochester·J. E. Stalnaker·A. O. Sushkov·V. V. Yashchuk
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Abstract

In a recent letter [Auzinsh {\it{et. al.}} (physics/0403097)] we have analyzed the noise properties of an idealized atomic magnetometer that utilizes spin squeezing induced by a continuous quantum nondemolition measurement. Such a magnetometer measures spin precession of $N$ atomic spins by detecting optical rotation of far-detuned probe light. Here we consider maximally squeezed probe light, and carry out a detailed derivation of the contribution to the noise in a magnetometric measurement due to the differential AC Stark shift between Zeeman sublevels arising from quantum fluctuations of the probe polarization.

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M. Auzinsh, D. Budker, D. F. Kimball, S. M. Rochester, J. E. Stalnaker, A. O. Sushkov, V. V. Yashchuk. 2004-07-24. AC Stark shift noise in QND measurement arising from quantum fluctuations of light polarization. https://arxiv.org/abs/physics/0407125

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