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Entanglement and Extreme Spin Squeezing
Open accessAbstract
For any mean value of a Cartesian component of a spin vector we identify the smallest possible uncertainty in any of the orthogonal components. The corresponding states are optimal for spectroscopy and atomic clocks. We show that the results for different spin J can be used to identify entanglement and to quantify the depth of entanglement in systems with many particles. With the procedure developed in this Letter, collective spin measurements on an ensemble of particles can be used as an experimental proof of multiparticle entanglement.
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Cites
Quantum states with Einstein-Podolsky-Rosen correlations admitting a hidden-variable model
Werner, R. F. (1989) · Physical Review A · doi:10.1103/physreva.40.4277 · Cited by 4,062
Cited by
Degen, C. L., Reinhard, F., & Cappellaro, P. (2017) · Reviews of Modern Physics · doi:10.1103/revmodphys.89.035002 · Cited by 4,045
Entanglement in many-body systems
Amico, L., Fazio, R., Osterloh, A., & Vedral, V. (2008) · Reviews of Modern Physics · doi:10.1103/revmodphys.80.517 · Cited by 3,745
Gühne, O., & Tóth, G. (2009) · Physics Reports · doi:10.1016/j.physrep.2009.02.004 · Cited by 2,401
Atom-chip-based generation of entanglement for quantum metrology
Riedel, M. F., Böhi, P., Li, Y., Hänsch, T. W., Sinatra, A., & Treutlein, P. (2010) · Nature · doi:10.1038/nature08988 · Cited by 874
Quantum metrology from a quantum information science perspective
Tóth, G., & Apellaniz, I. (2014) · Journal of Physics A Mathematical and Theoretical · doi:10.1088/1751-8113/47/42/424006 · Cited by 862
Metadata
- Authors
- Sørensen, A. S., & Mølmer, K.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2001-05-14
- Volume
- 86
- Issue
- 20
- Pages
- 4431-4434
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2006681791
- Cited by
- 496
- References
- 1
- FWCI
- 10.51
- Type
- journal article
- Language
- en
- Open access
- green
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