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States of an Ensemble of Two-Level Atoms with Reduced Quantum Uncertainty
Monika H. Schleier-Smith, Ian D. Leroux, Vladan Vuletić
We generate entangled states of an ensemble of 5*10^4 rubidium-87 atoms by optical quantum nondemolition measurement. The resonator-enhanced measurement leaves the atomic ensemble,…
Heralded single-magnon quantum memory for photon polarization states
Haruka Tanji, Saikat Ghosh, Jonathan Simon +2
We demonstrate a heralded quantum memory based on mapping of a photon polarization state onto a single collective-spin excitation (magnon) shared between two spatially overlapped a…
Observation of Cold Collisions between Trapped Ions and Trapped Atoms
Andrew T. Grier, Marko Cetina, Fedja Oručević +1
We demonstrate a double-trap system well suited to study cold collisions between trapped ions and trapped atoms. Using Yb ions confined in a Paul trap and Yb atoms in a magneto…