Alice falls into a black hole: Entanglement in non-inertial frames

Details Alice falls into a black hole: Entanglement in non-inertial frames Alice falls into a black hole: Entanglement in non-inertial frames

2004-10-21

arxiv.org/abs/quant-ph/0410172v3

Phys.Rev.Lett. 95 (2005) 120404

Physics

Quantum Physics

I.F-S published before with maiden name Fuentes-Guridi Replaced with published version. Phys. Rev. Lett. in press

Scientific paper

10.1103/PhysRevLett.95.120404

Two observers determine the entanglement between two free bosonic modes by each detecting one of the modes and observing the correlations between their measurements. We show that a state which is maximally entangled in an inertial frame becomes less entangled if the observers are relatively accelerated. This phenomenon, which is a consequence of the Unruh effect, shows that entanglement is an observer-dependent quantity in non-inertial frames. In the high acceleration limit, our results can be applied to a non-accelerated observer falling into a black hole while the accelerated one barely escapes. If the observer escapes with infinite acceleration, the state's distillable entanglement vanishes.

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