Ultrasensitive Atomic Spin Measurements with a Nonlinear Interferometer

@article{Sewell2013UltrasensitiveAS,
  title={Ultrasensitive Atomic Spin Measurements with a Nonlinear Interferometer},
  author={Robert J. Sewell and Michele Napolitano and Naeimeh Behbood and Gianpiero Colangelo and Ferran Martin Ciurana and Morgan W. Mitchell},
  journal={arXiv: Quantum Physics},
  year={2013},
  pages={021045}
}
  • Robert J. Sewell, Michele Napolitano, +3 authors Morgan W. Mitchell
  • Published 2013
  • Physics, Mathematics
  • arXiv: Quantum Physics
  • We study nonlinear interferometry applied to a measurement of atomic spin and demonstrate a sensitivity that cannot be achieved by any linear-optical measurement with the same experimental resources. We use alignment-to-orientation conversion, a nonlinear-optical technique from optical magnetometry, to perform a nondestructive measurement of the spin alignment of a cold $^{87}$Rb atomic ensemble. We observe state-of-the-art spin sensitivity in a single-pass measurement, in good agreement with… CONTINUE READING

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