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arXiv · 1708.01359

Harvesting large scale entanglement in de Sitter space with multiple detectors

Shingo Kukita·Yasusada Nambu
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Abstract

We consider entanglement harvesting in de Sitter space using a model of multiple qubit detectors. We obtain the formula of the entanglement negativity for this system. Applying the obtained formula, we find that it is possible to access to the entanglement on the super horizon scale if sufficiently large number of detectors are prepared. This result indicates the effect of the multipartite entanglement is crucial for detection of large scale entanglement in de Sitter space.

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Shingo Kukita, Yasusada Nambu. 2017-08-04. Harvesting large scale entanglement in de Sitter space with multiple detectors. https://doi.org/10.3390/e19090449

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