Long-lived mesoscopic entanglement outside the Lamb-Dicke regime.

Long-lived mesoscopic entanglement outside the Lamb-Dicke regime.

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We create entangled states of the spin and motion of a single 40Ca+ ion in a linear ion trap. We theoretically study and experimentally observe the behavior outside the Lamb-Dicke regime, where the trajectory in phase space is modified and the motional coherent states become squeezed. We directly ob...

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書誌詳細
主要な著者: McDonnell, M, Home, J, Lucas, D, Imreh, G, Keitch, B, Szwer, D, Thomas, N, Webster, S, Stacey, D, Steane, A
フォーマット: Journal article
言語:English
出版事項: 2007
その他の書誌記述
要約:We create entangled states of the spin and motion of a single 40Ca+ ion in a linear ion trap. We theoretically study and experimentally observe the behavior outside the Lamb-Dicke regime, where the trajectory in phase space is modified and the motional coherent states become squeezed. We directly observe the modification of the return time of the trajectory, and infer the squeezing. The mesoscopic entanglement is observed up to Deltaalpha=5.1 with coherence time 170 micros and mean phonon excitation n = 16.

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