Contents :
Bell inequality violation with two remote atomic qubits D. N. Matsukevich P. Maunz D. L. Moehring S. Olmschenk C. Monroe JQI and Department of Physics University of Maryland We report the violation of a Bell inequality between the quantum states of two remote Yb ions separated by about one meter. First we prepare the two spatially separated ions each entangled with the polarization state of a photon it has emitted. Next the heralded entanglement of two ions is established via interference and joint detection of these photons. The near unit detection efficiency of the quantum state of the remote trapped ions allows us to close the detection loophole in a Bell inequality measurement. This experiment also offers an approach to a loophole-free test of a Bell inequality. This work is supported by IARPA under ARO contract W911NF-04-1-0234 and the NSF PIF Program under grant PHY-0601255.
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- Length : 1 pages
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- Verified : 2012-07-10
- Source: www.iontrap.umd.edu
INFO HASH : 91ab20e5f513616a5a78ce6430f53b87114e5ac6
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