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Probing spatial spin correlations of ultracold gases by quantum noise spectroscopy
G. M. Bruun, Brian M. Andersen, Eugene Demler +1
Spin noise spectroscopy with a single laser beam is demonstrated theoretically to provide a direct probe of the spatial correlations of cold fermionic gases. We show how the generi…
Memory Imperfections in Atomic Ensemble-based Quantum Repeaters
Jonatan Bohr Brask, Anders Sondberg Sorensen
Quantum repeaters promise to deliver long-distance entanglement overcoming noise and loss in realistic quantum channels. A promising class of repeaters, based on atomic ensemble qu…
Spin squeezing of atomic ensembles via nuclear-electronic spin entanglement
T. Fernholz, H. Krauter, K. Jensen +3
Entangled many body systems have recently attracted significant attention in various contexts. Among them, spin squeezed atoms and ions have raised interest in the field of precisi…