Nonmaximal Entanglement Can Make Joint Remote State Preparation Absolutely Secure

Cao Thi Bich, Nguyen Ba An
Author affiliations

Authors

  • Cao Thi Bich Center for Theoretical Physics, Institute of Physics, Hanoi
  • Nguyen Ba An Center for Theoretical Physics, Institute of Physics, Hanoi

DOI:

https://doi.org/10.15625/0868-3166/23/2/2857

Keywords:

Entanglement, joint remote state preparation, security

Abstract

Joint remote state preparation is a multiparty global quantum task in which several parties are assigned to jointly prepare a quantum state for a remote party. Although various protocols have been proposed so far, none of them are absolutely secure in the sense that the legitimate parties (the preparers plus the receiver) can by no means identify the state to be prepared even if they all collude with each other. Here we resolve this drawback by employing the quantum channel in terms of nonmaximally entangled states whose parameters are kept secret to all the participants but used to split the information in a judicious way so that not only absolute security in the above-mentioned sense is achieved but also the performance is the simplest possible.

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References

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Published

21-05-2013

How to Cite

[1]
C. T. Bich and N. B. An, “Nonmaximal Entanglement Can Make Joint Remote State Preparation Absolutely Secure”, Comm. Phys., vol. 23, no. 2, p. 97, May 2013.

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Papers
Received 01-04-2013
Published 21-05-2013