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arXiv:physics/0407125v124Jul2004 AC Stark shift noise in QND measurement arising from quantum fluctuations of light
 

Summary: arXiv:physics/0407125v124Jul2004
AC Stark shift noise in QND measurement arising from quantum fluctuations of light
polarization
M. Auzinsh
Department of Physics, University of Latvia, 19 Rainis blvd, Riga, LV-1586, Latvia
D. Budker
Department of Physics, University of California, Berkeley, CA 94720-7300 and
Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley CA 94720
D. F. Kimball, S. M. Rochester, J. E. Stalnaker, and A. O. Sushkov
Department of Physics, University of California, Berkeley, CA 94720-7300
V. V. Yashchuk
Advanced Light Source Division, Lawrence Berkeley National Laboratory, Berkeley CA 94720
(Dated: July 27, 2004)
In a recent letter [Auzinsh 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.

  

Source: Auzinsh, Marcis - Department of Physics, University of Latvia

 

Collections: Physics