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

Entropy

Dong Wang¹  Ross D. Hoehn²  Liu Ye¹  Sabre Kais² 

[1] School of Physics & Material Science, Anhui University, Hefei 230601, China; E-Mail:;Department of Chemistry and Birck Nanotechnology Center, Purdue University, West Lafayette, IN 47907, USA; E-Mail:

关键词: quantum communication;    remote state preparation;    entangled state;    collective unitary operation;    success probability;   

DOI  :  10.3390/e17041755

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland