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Entanglement behavior of quantum states of fermionic system in accelerated frame

In this article we investigate the entanglement behavior of quantum states of fermionic system in accelerated frame. It was known that unlike scalar case the entanglement of fermionic maximally entangled states survives even in the infinite acceleration limit. Also for the fermionic system it was discussed that one may consider the approach beyond single mode approximation. However due to the peculiar property of fermionic system there has been different opinions about correct physical structure of fermionic system. Recently Montero and Martín-Martínez suggested an approach beyond single mode approximation. Using the structure proposed by Montero and Martín-Martínez we investigate the entanglement behavior of quantum states of fermionic system in accelerated frame. We find that the approach by Montero and Martín-Martínez seems to work appropriately. Also we may obtain the proper entanglement behavior of quantum states in fermionic system in accelerated frame(our result may correct the previous results published in Phys.Rev.A 83 052306).

preprint2012arXivOpen access

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