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Sudden death and long-living of entanglement in an ion-trap laser

Mahmoud Abdel-Aty
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Abstract

he dynamical properties of quantum entanglement in a time-dependent three-level-trapped ion interacting with a laser field are studied in terms of the reduced-density linear entropy considering two specific initial states of the field. Allowing the instantaneous position of the center-of-mass motion of the ion to be explicitly time-dependent, it is shown that either sudden death of entanglement or survivability of quantum entanglement can be obtained with a specific choice of the initial state parameters. The difference in evolution picture corresponding to the multi-quanta processes is discussed.

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Mahmoud Abdel-Aty. 2006-10-22. Sudden death and long-living of entanglement in an ion-trap laser. https://arxiv.org/abs/quant-ph/0610186

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