Planar quantum squeezing and atom interferometry

@article{He2011PlanarQS,
  title={Planar quantum squeezing and atom interferometry},
  author={Qiang He and Shi-Guo Peng and Peter D. Drummond and Margaret D Reid},
  journal={2011 International Quantum Electronics Conference (IQEC) and Conference on Lasers and Electro-Optics (CLEO) Pacific Rim incorporating the Australasian Conference on Optics, Lasers and Spectroscopy and the Australian Conference on Optical Fibre Technology},
  year={2011},
  pages={119-121}
}
We obtain a novel planar squeezing uncertainty relation for spin variances in a plane, and show how to obtain such planar squeezed states using a BEC. These minimize interferometric phase-noise at all phase angles simultaneously. 

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