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Sudden death of entanglement and teleportation fidelity loss via the Unruh effect
Physical Review A. Atomic, Molecular, and Optical Physics
We use the Unruh effect to investigate how the teleportation of quantum states is affected when one of the entangled qubits used in the process is under the influence of some external force. In order to reach a comprehensive understanding, a detailed analysis of the acceleration effect on such entangled qubit system is performed. In particular, we calculate the mutual information and concurrence between the two qubits and show that the latter has a "sudden death" at a finite acceleration, whosedoi:10.1103/physreva.80.032315 fatcat:5wzggg7qfzcknhgetuxloa3a3u