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Modern Physics Letters B

JOINT REMOTE PREPARATION OF ARBITRARY THREE-QUBIT STATES

Peng Jia-yin, Ming‐Xing Luo, Zhiwen Mo, Zhiguo Qu

Published Aug 20, 2013• 5 citations
Publisher

Abstract

The protocols for jointly preparing three-particle state from a spatially separated multi-sender to one receiver are presented in this paper. The first scheme with two senders is proposed and shown to be a flexible deterministically. And then it is generalized to the multi-sender with improved success probability, by only adding some classical communications.

DOI
10.1142/s0217984913501601

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The protocols for jointly preparing three-particle state from a spatially separated multi-sender to one receiver are presented in this paper. The first scheme with two senders is proposed and shown to be a flexible deterministically. And then it is generalized to the multi-sender with improved success probability, by only adding some classical communications.
By joint actions of two separate two-qubit projective measurements, I present a new protocol for remotely preparing a two-qubit state via the shared three bipartite entanglements. The success probability and the classical communication cost are also minutely calculated. Then I concisely generalize it to multi-party case and multi-qubit state case, respectively. In contrast to the previous schemes [Int. J. Theor. Phys.48 (2009) 2005; Int. J. Theor. Phys.46 (2007) 2378; Commun. Theor. Phys.47 (2007) 247], this protocol has distinct advantages overwhelming the above ones as far as quantum resource consumption and quantum operation difficulty or intensity are concerned.
In this paper, we investigate novel protocols for the joint remote state preparation involving several senders and receivers. The highlight of our paper lies in two aspects. First, we focus on the distribution of information among multiple senders and receivers. Second, each receiver can simultaneously reconstruct a qubit state containing the joint information from all senders. These properties imply that our protocols may have many extensive applications in burgeoning quantum network communication. Our protocols cover a variety of class, i.e. two-to-three, N-to-three, and N-to-M. Through introducing the quantum fourier transform, the set of orthogonal basis in the M-dimensional Hilbert space is ingeniously constructed. Moreover, we present all the recovery operations in details. The success probability and the classical communication costs are also given.