Sudden death and long-lived entanglement of two three-level trapped ions
arXiv:quant-ph/0703077 · doi:10.1016/j.physleta.2007.05.003
Abstract
The dynamical properties of quantum entanglement in two three-level trapped ions interacting with a laser field are studied in terms of the negative eigenvalues of the partial transposition of the density operator. In contrast to the usual belief that destroying the entanglement can be observed due to the environment, it is found that the Stark shift can also produce sudden death of entanglement and long-lived entanglement between the qubits that are prepared initially in separable states or mixed states.
arXiv comment10 pages, 3 figures
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Cited by in corpus (7)
- Finite-time destruction of entanglement and non-locality by environmental influences
- Two atoms in dissipative cavities in dispersive limit: entanglement sudden death and long-lived entanglement
- Entanglement sudden birth of two trapped ions interacting with a time-dependent laser field
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