Spin-Mixing Interferometry with Bose-Einstein Condensates

Year: 2015

Authors: Gabbrielli M., Pezzè L., Smerzi A.

Autors Affiliation: Univ Florence, Dipartimento Fis & Astron, I-50019 Sesto Fiorentino, Italy; CNR, INO, QSTAR, I-50125 Florence, Italy; LENS, I-50125 Florence, Italy.

Abstract: 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.

Journal/Review: PHYSICAL REVIEW LETTERS

Volume: 115 (16)      Pages from: 163002-1  to: 163002-5

More Information: We thank C. Klempt, B. Lucke, W. Mussel, M. K. Oberthaler and H. Strobel for discussions. This work is supported by EU-STREP Project QIBEC, No. FP7-ICT-2011-C. L. P. acknowledges financial support by MIUR through FIRB Project No. RBFR08H058.
KeyWords: Coherent States; Quantum; Entanglement; Limit; Optics; Su(2)
DOI: 10.1103/PhysRevLett.115.163002

Citations: 79
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