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Abstract
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We study the effect of acceleration of the observer on the quantum Fisher information and entanglement using hybrid state. The two-partite entangled hybrid state is consisted of discrete (vacuum and single photon) and continues (coherent) variable states. When one of the observers (e.g., Rob) is uniformly accelerated with respect to the other partner, Alice, we find that quantum Fisher information has a more stable structure than entanglement. Results show that quantum Fisher information decreases with the increase of the acceleration but remains finite in the limit of infinite acceleration that is in contrast with entanglement. Moreover, the effect of acceleration is investigated on the value of two-mode squeezing.
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