Sudden death of entanglement and teleportation fidelity loss via the Unruh effect

Details Sudden death of entanglement and teleportation fidelity loss via the Unruh effect Sudden death of entanglement and teleportation fidelity loss via the Unruh effect

2009-07-02

arxiv.org/abs/0907.0485v1

Phys.Rev.A80:032315,2009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, 5 figures

Scientific paper

10.1103/PhysRevA.80.032315

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, whose value will depend on the time interval along which the detector is accelerated.

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