Atom interferometer in a double-well potential

@article{Gietka2014AtomII,
  title={Atom interferometer in a double-well potential},
  author={Karol Gietka and Jan Chwedeńczuk},
  journal={Physical Review A},
  year={2014},
  volume={90},
  pages={063601}
}
We present a detailed study of an atom interferometer which can be realized in a double-well potential. We assume that the interferometric phase is imprinted in the presence of coherent tunneling between the wells. We calculate the ultimate bounds for the estimation sensitivity and show how they relate to the precision of the Mach-Zehnder interferometer. The interferometer presented here allows for sub shot-noise sensitivity when fed with the spin-squeezed states with reduced either the… 

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