Journal
PHYSICAL REVIEW LETTERS
Volume 115, Issue 16, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.115.163002
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Funding
- EU-STREP Project QIBEC [FP7-ICT-2011-C]
- MIUR through FIRB [RBFR08H058]
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Unstable spinor Bose-Einstein condensates are ideal candidates to create nonlinear three-mode interferometers. Our analysis goes beyond the standard SU(1,1) parametric approach and therefore provides the regime of parameters where sub-shot-noise sensitivities can be reached with respect to the input total average number of particles. Decoherence due to particle losses and finite detection efficiency are also considered.
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