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Entropy 2015, 17(4), 1755-1774; doi:10.3390/e17041755

Generalized Remote Preparation of Arbitrary m-qubit Entangled States via Genuine Entanglements

1,2,3,* , 2
,
1
and
2,4
1
School of Physics & Material Science, Anhui University, Hefei 230601, China
2
Department of Chemistry and Birck Nanotechnology Center, Purdue University,West Lafayette, IN 47907, USA
3
National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
4
Qatar Environment and Energy Research Institute, Qatar Foundation, Doha, 5825 Qatar
*
Author to whom correspondence should be addressed.
Academic Editor: Scarfone Antonio
Received: 21 January 2015 / Revised: 17 March 2015 / Accepted: 26 March 2015 / Published: 30 March 2015
(This article belongs to the Special Issue Quantum Computation and Information: Multi-Particle Aspects)
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Abstract

Herein, we present a feasible, general protocol for quantum communication within a network via generalized remote preparation of an arbitrary m-qubit entangled state designed with genuine tripartite Greenberger–Horne–Zeilinger-type entangled resources. During the implementations, we construct novel collective unitary operations; these operations are tasked with performing the necessary phase transfers during remote state preparations. We have distilled our implementation methods into a five-step procedure, which can be used to faithfully recover the desired state during transfer. Compared to previous existing schemes, our methodology features a greatly increased success probability. After the consumption of auxiliary qubits and the performance of collective unitary operations, the probability of successful state transfer is increased four-fold and eight-fold for arbitrary two- and three-qubit entanglements when compared to other methods within the literature, respectively. We conclude this paper with a discussion of the presented scheme for state preparation, including: success probabilities, reducibility and generalizability. View Full-Text
Keywords: quantum communication; remote state preparation; entangled state; collective unitary operation; success probability quantum communication; remote state preparation; entangled state; collective unitary operation; success probability
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wang, D.; Hoehn, R.D.; Ye, L.; Kais, S. Generalized Remote Preparation of Arbitrary m-qubit Entangled States via Genuine Entanglements. Entropy 2015, 17, 1755-1774.

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