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

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...

Ամբողջական նկարագրություն

Մատենագիտական մանրամասներ
Հիմնական հեղինակներ:	McDonnell, M, Home, J, Lucas, D, Imreh, G, Keitch, B, Szwer, D, Thomas, N, Webster, S, Stacey, D, Steane, A
Ձևաչափ:	Journal article
Լեզու:	English
Հրապարակվել է:	2007

Նկարագրություն
Ամփոփում:	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.

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

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