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We investigate the entanglement dynamics of two initially entangled qubits interacting independently with two uncorrelated reservoirs beyond the Markovian approximation. Quite different from the Markovian reservoirs [C.E. López, et al., Phys. Rev. Lett. 101 (2008) 080503], we find that entanglement sudden birth (ESB) of the two reservoirs occurs without certain symmetry with respect to the entanglement...
By means of the Ising terms generated by Coulomb interaction between ions and the magnetic field gradient, we propose a scheme for teleportation with trapped ions with insurance. We show the merits of our scheme by comparing with the recently achieved teleportation experiments with trapped ions and discuss whether it could be achieved by current techniques.
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