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arXiv · 1008.4926

Vacuum entanglement enhancement by a weak gravitational field

Mathieu Cliche·Achim Kempf
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Abstract

Separate regions in space are generally entangled, even in the vacuum state. It is known that this entanglement can be swapped to separated Unruh-DeWitt detectors, i.e., that the vacuum can serve as a source of entanglement. Here, we demonstrate that, in the presence of curvature, the amount of entanglement that Unruh-DeWitt detectors can extract from the vacuum can be increased.

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Mathieu Cliche, Achim Kempf. 2010-08-29. Vacuum entanglement enhancement by a weak gravitational field. https://doi.org/10.1103/physrevd.83.045019

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