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Communications in Theoretical Physics 2014年第3期61卷 315-321页

作者： LIAOYue-Ming ZHOU Ping QIN Xing-Chen HE Yan-He QIN Jian-Sheng School of Science Guangxi University for Nationalities Nanning 530006 China Guangxi Key Laboratory of Hybrid Computational and IC Design Analysis Nanning 530006 China

We present a scheme for symmetric controlled remote preparation of an arbitrary 2-qudit state form a sender to either of the two receivers via positive operator-valued measurement and pure entangled two-particle states. The first sender transforms the quantum channel shared by all the agents via POVM according to her knowledge of prepared state. All the senders perform singIe- or two-particle projective measurements on their entangled particles and the receiver can probabilisticaly reconstruct the original state on her entangled particles via unitary transformation and auxiliary qubit. The scheme is optimal as the probability which the receiver prepares the original state equals to the entanglement of the quantum channel. Moreover, it is more convenience in application than others as it requires only two-particle entanglements for preparing an arbitrary two-qudit state.

关键词： controlled remote state preparation positive operator-valued measure two-particle entanglements

Probabilistic Teleportation of an Arbitrary Unknown Two-Qubit State via positive operator-valued measure and Two Non-maximally Entangled States

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Communications in Theoretical Physics 2006年第5X期46卷 859-862页

作者： WANG Zhang-Yin WANG Dong LIU Jun SHI Shou-Hua Key Laboratory of Optoelectronic Information Acquisition & Manipulation of Ministry of Education of China School ofPhysics & Material Science Anhui University Hefei 230039 China

We present a scheme for probabilistically teleporting an arbitrary unknown two-qubit state through a quantum channel made up of two nonidentical non-maximally entangled states. In this scheme, the probabilistic telepo... 详细信息

关键词： positive operator-valued measure quantum teleportation non-maximally entangled state

Probabilistically Controlled Teleportation of an Arbitrary Two-Qubit State via positive operator-valued measure

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Communications in Theoretical Physics 2013年第5期59卷 554-558页

作者：许海峰韩莲芳 School of Mechanical and Electronical Engineering Suzhou College School of Physics and Material Science Anhui University Department of Applied Physics School of Life ScienceAnhui Medical University

We propose a tripartite scheme for probabilistically teleporting an arbitrary two-qubit state with a fourqubit cluster-class state and a Bell-class state as the quantum channels. In the scheme, the sender and the controller make Bell-state measurements (BSMs) on their respective qubit pairs. With their measurement results, the receiver can reconstruct the original state probabilistically by introducing two auxiliary particles and making appropriate unitary operations and positive operator-valued measure (POVM) instead of usual projective measurement. Moreover, the total success probability and classical communication cost of the present protocol are also worked out.

关键词： controlled teleportation pure entangled quantum channels positive operator-valued measure success probability classical communication cost

Probabilistic Teleportation of an Arbitrary Unknown Two-Qubit State via positive operator-valued measure and Two Non-maximally Entangled States

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Communications in Theoretical Physics 2006年第11期 859-862页

作者： WANG Zhang-Yin, WANG Dong, LIU Jun, and SHI Shou-Hua~+ Key Laboratory of Optoelectronic Information Acquisition & Manipulation of Ministry of Education of China, School of Physics & Material Science, Anhui University, Hefei 230039, China

关键词： positive operator-valued measure quantum teleportation non-maximally entangled state

Probabilistic teleportation of multi-particle partially entangled state

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Chinese Physics B 2008年第3期17卷 771-777页

作者：陈秀波杜建忠温巧燕朱甫臣 State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications School of Science Beijing University of Posts and Telecommunications School of Information Engineering Beijing University of Science and Technology National Laboratory for Modern Communications

Utilizing the generalized measurement described by positive operator-wlued measure, this paper comes up with a protocol for teleportation of an unknown multi-particle entangled （GHZ） state with a certain probability. The feature of the present protocol is to weaken requirement for the quantum channel initially shared by sender and receiver. All unitary transformations performed by receiver are summarized into a formula. On the other hand, this paper explicitly constructs the efficient quantum circuits for implementing the proposed teleportation by means of universal quantum logic operations in quantum computation.

关键词： quantum teleportation quantum circuits positive operator-valued measure unitary transformations

Two Schemes for Probabilistic Remote Preparation of a Four-Particle Entangled Cluster-Type State

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Communications in Theoretical Physics 2014年第3期61卷 305-314页

作者： HOU Kui WANG Hong-Yan LI Yi-Bao Department of Mathematics and Physics Anhui Jianzhu University Hefei 230601 China

Using partial entangled states as the quantum channel, two schemes for probabilistic remote preparation of the four-particle cluster-type state with real and complex coefficients are presented. In the first scheme, the sender and the receiver share two partial Bell states and one partial three-qubit GHZ stats as the quantum channel, and the sender can help a remote receiver to prepare a four-particle entangled cluster-type state by using three-qubit projective measurements with certain probability. In the second scheme, the quantum channel is composed of two partial three-qubit GHZ states, the remote state preparation(RSP) can be successfully realized via the positive operator valued measure(POVM), and the two-particle projective measurements are also needed in this process. The total success probability and classical communication cost are calculated.

关键词： remote state preparation GHZ state positive operator-valued measure classical information

Controlled Remote Preparation of a Two-Qubit State via an Asymmetric Quantum Channel

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Communications in Theoretical Physics 2011年第2期55卷 244-250页

作者：王章银 Key Laboratory of Optoelectronic Information Acquisition & Manipulation of Ministry of Education of China School of Physics & Material Science Anhui University

I present a new scheme for probabilistic remote preparation of a general two-qubit state from a sender to either of two *** quantum channel is composed of a partial entangled tripartite Greenberger-Horne-Zeilinger (GHZ) state and a W-type state.I try to realize the remote two-qubit preparation by using the usual projective measurement and the method of positive operator-valued measure,*** corresponding success probabilities of the scheme with different methods as well as the total classical communication cost required in this scheme are also calculated.

关键词： remote state preparation partial entangled Greenberger-Horne-Zeilinger (GHZ) state W-type state projective measurement positive operator-valued measure unitary operation