Physics – Quantum Physics
Scientific paper
2009-11-20
Phys. Rev. Lett. 104, 073602 (2010)
Physics
Quantum Physics
4 pages, 2 figures. To be published in Phys. Rev. Lett. Some additional details and clarified wording in response to referee c
Scientific paper
10.1103/PhysRevLett.104.073602
We squeeze unconditionally the collective spin of a dilute ensemble of laser-cooled rubidium-87 atoms using their interaction with a driven optical resonator. The shape and size of the resulting spin uncertainty region are well described by a simple analytical model [M.H.S., I.D.L., V.V., arXiv:0911.3936] through two orders of magnitude in the effective interaction strength, without free parameters. We deterministically generate states with up to 5.6(6) dB of metrologically relevant spin squeezing on the canonical rubidium-87 hyperfine clock transition.
Leroux Ian D.
Schleier-Smith Monika H.
Vuletic Vladan
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