Dissipative Preparation of Spin Squeezed Atomic Ensembles in a Steady State
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Torre-2013-Dissipative Preparation of Spin Squeezed.pdf
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Author(s)
Dalla Torre, Emanuele G.
Otterbach, Johannes
Demler, Eugene
Vuletic, Vladan
Lukin, Mikhail D.
Date Issued
March 2013
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Dalla Torre, Emanuele G., Johannes Otterbach, Eugene Demler, Vladan Vuletic, and Mikhail D. Lukin. Dissipative Preparation of Spin Squeezed Atomic Ensembles in a Steady State. Physical Review Letters 110, no. 12 (March 2013).© 2013 American Physical Society.
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Final published version
Abstract
We present and analyze a new approach for the generation of atomic spin-squeezed states. Our method involves the collective coupling of an atomic ensemble to a decaying mode of an open optical cavity. We demonstrate the existence of a collective atomic dark state, decoupled from the radiation field. By explicitly constructing this state we find that it can feature spin squeezing bounded only by the Heisenberg limit. We show that such dark states can be deterministically prepared via dissipative means, thus turning dissipation into a resource for entanglement. The scaling of the phase sensitivity taking realistic imperfections into account is discussed.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.110.120402
