Abstract
Let Alice, Bob and Charlie initially share an arbitrary fermionic three-qubit pure state, whose three-tangle is τ(0)3. It is shown within the single-mode approximation that if one party among the three of them moves with a uniform acceleration with respect to the other parties, the three-tangle reduces to τ(0)3cos 2r, where r denotes a statistical factor in Fermi–Dirac statistics.
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