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Deterministic joint remote preparation of an arbitrary two-qubit state in the presence of noise 被引量:2
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作者 陈忠芳 刘金明 马雷 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第2期129-137,共9页
Using two tripartite Greenberger-Horne-Zeilinger (GHZ) states as the shared channels, we investigate the noise effects on the deterministic joint remote preparation of an arbitrary two-qubit state. By unitary matrix... Using two tripartite Greenberger-Horne-Zeilinger (GHZ) states as the shared channels, we investigate the noise effects on the deterministic joint remote preparation of an arbitrary two-qubit state. By unitary matrix decomposition procedure, we first construct the quantum logic circuit of the deterministic joint remote state preparation protocol. Then, we analytically derive the fidelity and the average fidelity for the deterministic joint remote preparation of an arbitrary two- qubit state and of four types of special two-qubit states under the influence of the Pauli noises. It is found that the fidelity depends on the noise types, the qubit-environment coupling strength, and the state to be remotely prepared. Moreover, even if the two GHZ channels are subject to the same environmental noises, the average fidelities for remotely preparing different two-qubit states display different time evolution behaviors. The remote preparation of the identical two-qubit states also shows that the average fidelities affected by different noisy environments exhibit different evolution actions. 展开更多
关键词 joint remote state preparation GHZ states noisy environments
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Joint remote preparation of an arbitrary five-qubit Brown state via non-maximally entangled channels 被引量:2
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作者 常利伟 郑世慧 +2 位作者 谷利泽 肖达 杨义先 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第9期91-99,共9页
We firstly present a novel scheme for deterministic joint remote state preparation of an arbitrary five-qubit Brown state using four Greenberg-Horme-Zeilinger (GHZ) entangled states as the quantum channel. The succe... We firstly present a novel scheme for deterministic joint remote state preparation of an arbitrary five-qubit Brown state using four Greenberg-Horme-Zeilinger (GHZ) entangled states as the quantum channel. The success probability of this scheme is up to 1, which is superior to the existing ones. Moreover, the scheme is extended to the generalized case where three-qubit and four-qubit non-maximally entangled states are taken as the quantum channel. We simultaneously employ two common methods to reconstruct the desired state. By comparing these two methods, we draw a conclusion that the first is superior to the second-optimal positive operator-valued measure only taking into account the number of auxiliary particles and the success probability. 展开更多
关键词 joint remote state preparation Brown state optimal positive operator-valued measure
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Efficient schemes of joint remote preparation with a passive receiver via EPR pairs 被引量:1
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作者 马松雅 高聪 罗明星 《Chinese Physics B》 SCIE EI CAS CSCD 2015年第11期125-132,共8页
Novel schemes are put forward to execute the joint remote preparation of an arbitrary two-qubit state with a pas- sive receiver via EPR pairs as the entangled channel. Compared with the previous protocols, the require... Novel schemes are put forward to execute the joint remote preparation of an arbitrary two-qubit state with a pas- sive receiver via EPR pairs as the entangled channel. Compared with the previous protocols, the required multi-particle measurement is simplified and the classical communication cost is reduced. When the number of senders increases, the advantage is more evident. It means that the proposed schemes are more efficient in practice. 展开更多
关键词 joint remote preparation EPR pair measurement basis quantum network communication
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Deterministic joint remote state preparation of arbitrary two-and three-qubit states 被引量:1
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作者 王媛 计新 《Chinese Physics B》 SCIE EI CAS CSCD 2013年第2期92-96,共5页
We propose a novel deterministic protocol that two senders are capable of remotely preparing arbitrary two-and three-qubit states for a remote receiver using EPR pairs and GHZ state as the quantum channel.Compared wit... We propose a novel deterministic protocol that two senders are capable of remotely preparing arbitrary two-and three-qubit states for a remote receiver using EPR pairs and GHZ state as the quantum channel.Compared with the existing deterministic protocols [An et al.2011 Phys.Lett.A 375 3570 and Chen et al.2012 J.Phys.A:Math.Theor.45 055303],the quantum resources and classical information in our scheme are decreased,and the whole operation process is simplified. 展开更多
关键词 joint remote state preparation EPR pairs GHZ state
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Deterministic joint remote state preparation of arbitrary single- and two-qubit states 被引量:1
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作者 陈娜 权东晓 +2 位作者 徐馥芳 杨宏 裴昌幸 《Chinese Physics B》 SCIE EI CAS CSCD 2015年第10期71-77,共7页
In this paper, two novel schemes for deterministic joint remote state preparation(JRSP) of arbitrary single- and twoqubit states are proposed. A set of ingenious four-particle partially entangled states are construc... In this paper, two novel schemes for deterministic joint remote state preparation(JRSP) of arbitrary single- and twoqubit states are proposed. A set of ingenious four-particle partially entangled states are constructed to serve as the quantum channels. In our schemes, two senders and one receiver are involved. Participants collaborate with each other and perform projective measurements on their own particles under an elaborate measurement basis. Based on their measurement results,the receiver can reestablish the target state by means of appropriate local unitary operations deterministically. Unit success probability can be achieved independent of the channel's entanglement degree. 展开更多
关键词 joint remote state preparation four-particle partially entangled quantum channel single-qubitstate two-qubit state
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Probabilistic joint remote preparation of a high-dimensional equatorial quantum state 被引量:1
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作者 詹佑邦 张群永 施锦 《Chinese Physics B》 SCIE EI CAS CSCD 2010年第8期133-138,共6页
This paper proposes a scheme for probabilistic joint remote preparation of an arbitrary high-dimensional equatorial quantum state by using high-dimensional single-particle orthogonal projective measurement and appropr... This paper proposes a scheme for probabilistic joint remote preparation of an arbitrary high-dimensional equatorial quantum state by using high-dimensional single-particle orthogonal projective measurement and appropriate unitary operation. As a special case, a scheme of joint remote preparation of a single-qutrit equatorial state is presented in detail. The scheme is also generalized to the multi-party high-dimensional case. It shows that, only if when all the senders collaborate with each other, the receiver can reconstruct the original state with a certain probability. 展开更多
关键词 probabilistic joint remote preparation high-dimensional equatorial quantum state single-qudit projective measurement
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Deterministic Joint Remote Preparation of Arbitrary Four-Particle Genuine Entangled State
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作者 李剑 聂金瑞 +2 位作者 赵培均 李睿凡 邹永忠 《China Communications》 SCIE CSCD 2013年第2期11-18,共8页
A novel deterministic joint remote preparation scheme of arbitrary four-particle genuine entangled state from one sender to either of two receivers is proposed. Two three-particle Green-Horne-Zeilinger (GHZ) states ... A novel deterministic joint remote preparation scheme of arbitrary four-particle genuine entangled state from one sender to either of two receivers is proposed. Two three-particle Green-Horne-Zeilinger (GHZ) states and one four-particle GHZ state are used as the quantum channel. The presented scheme is realized through orthogonal projective mea-surement of the Hadamard transferred basis and recovery operation Ulijk). Some useful and general measurement bases have been con-structed. The classical communication cost of the presented scheme is also calculated. Our analysis confirms the feasibility and validity of the proposed method, and shows that it has a 100% probability of success in preparation of the target quantum state. 展开更多
关键词 joint remote preparation four-particle genuine entangled state projectivemeasurement Hadamard transferred basis
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Deterministic hierarchical joint remote state preparation with six-particle partially entangled state
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作者 Na Chen Bin Yan +2 位作者 Geng Chen Man-Jun Zhang Chang-Xing Pei 《Chinese Physics B》 SCIE EI CAS CSCD 2018年第9期184-190,共7页
In this paper, we present a novel scheme for hierarchical joint remote state preparation(HJRSP) in a deterministic manner, where two senders can jointly and remotely prepare an arbitrary single-qubit at three receiv... In this paper, we present a novel scheme for hierarchical joint remote state preparation(HJRSP) in a deterministic manner, where two senders can jointly and remotely prepare an arbitrary single-qubit at three receivers' port. A six-particle partially entangled state is pre-shared as the quantum channel. There is a hierarchy among the receivers concerning their powers to reconstruct the target state. Due to various unitary operations and projective measurements, the unit success probability can always be achieved irrespective of the parameters of the pre-shared partially entangled state. 展开更多
关键词 joint remote state preparation hierarchical quantum communication partially entangled state
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Determinate joint remote preparation of an arbitrary W-class quantum state 被引量:1
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作者 李剑 郑欢洋 《Chinese Physics C》 SCIE CAS CSCD 2012年第7期597-600,共4页
A novel determinate joint remote preparation scheme of an arbitrary W-class quantum state is proposed to improve the probability of successful preparation. The presented scheme is realized through orthogonal projectiv... A novel determinate joint remote preparation scheme of an arbitrary W-class quantum state is proposed to improve the probability of successful preparation. The presented scheme is realized through orthogonal projective measurement of the Hadamard transferred basis, which converts a global measurement to several local measurements. Thus orthogonal projective measurement of the Hadamard transferred basis enables quantum information to be transmitted from different sources simultaneously, which is a breakthrough for quantum network node processing. Finally, analysis shows the feasibility and validity of the proposed method, with a 100% probability of successful preparation. 展开更多
关键词 joint remote state preparation Hadamard transformation projective measurement quantum network coding
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Deterministic Joint Remote Preparation of an Arbitrary Two-Qubit State Using the Cluster State
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作者 王明明 陈秀波 杨义先 《Communications in Theoretical Physics》 SCIE CAS CSCD 2013年第5期568-572,共5页
Recently, deterministic joint remote state preparation (JRSP) schemes have been proposed to achieve 100% success probability. In this paper, we propose a new version of deterministic JRSP scheme of an arbitrary two-qu... Recently, deterministic joint remote state preparation (JRSP) schemes have been proposed to achieve 100% success probability. In this paper, we propose a new version of deterministic JRSP scheme of an arbitrary two-qubit state by using the six-qubit cluster state as shared quantum resource. Compared with previous schemes, our scheme has high efficiency since less quantum resource is required, some additional unitary operations and measurements are unnecessary. We point out that the existing two types of deterministic JRSP schemes based on GHZ states and EPR pairs are equivalent. 展开更多
关键词 joint remote state preparation cluster state unit success probability
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Economy
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《China Today》 2014年第10期12-12,共1页
Shanghai International Gold Trading Center Starts Operation The Shanghai International Gold Trading Center was recently launched as the first international trading platform in China(Shanghai)Pilot Free Trade Zone(... Shanghai International Gold Trading Center Starts Operation The Shanghai International Gold Trading Center was recently launched as the first international trading platform in China(Shanghai)Pilot Free Trade Zone(FTZ).The Shanghai FTZ is also preparing to establish other international trading centers.In the Shanghai gold trading center,foreigners are allowed to invest in China’s gold market.According to Li Jun, 展开更多
关键词 trading deputy preparing Pilot allowed trademark Economy jointly centers director
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