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Limitation to Communication of Fermionic System in Accelerated Frame

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Abstract

In this article, we investigate communication between an inertial observer and an accelerated observer, sharing fermionic system, when they use classical and quantum communication using single rail or dual rail encoding. The purpose of this work is to understand the limit to the communication between an inertial observer and an accelerated observer, with single rail or dual rail encoding of fermionic system. We observe that at the infinite acceleration, the coherent information of single(or double) rail quantum channel vanishes, but those of classical ones may have finite values. In addition, we see that even when considering a method beyond the single-mode approximation, for the communication between Alice and Bob, the dual rail entangled state seems to provide better information transfer than the single rail entangled state, when we take a fixed choice of the Unruh mode. Moreover, we find that the single-mode approximation may not be sufficient to analyze communication of fermionic system in an accelerated frame.

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Acknowledgments

We would like to thank anonymous referee and Dr.Martín-Martínez for valuable comments. This work is supported by the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology (NRF-2010-0025620).

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Authors and Affiliations

  1. Department of Applied Physics, Hanyang University, Ansan, Kyunggi-Do, 425-791, South Korea

    Jinho Chang & Younghun Kwon

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  1. Jinho Chang
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  2. Younghun Kwon
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Correspondence to Younghun Kwon.

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Chang, J., Kwon, Y. Limitation to Communication of Fermionic System in Accelerated Frame. Int J Theor Phys 54, 996–1008 (2015). https://doi.org/10.1007/s10773-014-2292-5

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  • DOI: https://doi.org/10.1007/s10773-014-2292-5

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