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Phys. Rev. Lett. 83, 1319–1322 (1999)

Spin Squeezed Atoms: A Macroscopic Entangled Ensemble Created by Light

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J. Hald, J. L. Sørensen, C. Schori, and E. S. Polzik
Institute of Physics and Astronomy, Aarhus University, Aarhus, 8000 Denmark

Received 21 January 1999; published in the issue dated 16 August 1999

We report on the experimental observation of a spin squeezed ensemble of 107 cold atoms. This macroscopic ensemble is generated via quantum state transfer from nonclassical light to atoms.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.1319
DOI:
10.1103/PhysRevLett.83.1319
PACS:
42.50.Ct, 03.65.Bz, 42.50.Dv, 42.50.Lc