arXiv:2009.05179 · Physical Review A

Influence of acceleration on multibody entangled quantum states

Yongjie Pan, Baocheng Zhang

Published Jun 24, 2020• 17 citations

Abstract

We study the influence of acceleration on the twin-Fock state which is a class of specific multibody entangled quantum state and was already realized experimentally with high precision and sensitivity. We show that the multibody quantum entanglement can be increased with the acceleration, consistent with the ``anti-Unruh effect'' in reference to the counterintuitive cooling previously pointed out for an accelerated detector coupled to the vacuum. In particular, this kind of entanglement increase can lead to the improvement of the phase sensitivity, which provides a way to test the anti-Unruh effect in the future experiments.

DOI: 10.1103/physreva.101.062111

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