Guo-Jian Yang
Beijing Normal University
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Publication
Featured researches published by Guo-Jian Yang.
Quantum Information Processing | 2009
Xin-Wen Wang; Yu-Huan Su; Guo-Jian Yang
We study the teleportation of an unknown quantum state from a sender (Alice) to a receiver (Bob) via the control of many supervisors (Charlie 1, Charlie 2, . . .) in a network. It has been shown that such a task can be achieved by distributing a GHZ-type entangled state among the participants in advance. In the protocols with GHZ-type entanglement channel, the achievement of teleportation between Alice and Bob is conditioned on the cooperation of all the supervisors. In other words, if anyone of the supervisors does not cooperate, the teleportation will fails. In this paper, we introduce another kind of controlled teleportaton protocol with other types of entangled states acting as the quantum channel, in which the teleportation between Alice and Bob can be realized with high degree of endurance against uncooperation of part of supervisors.
Physical Review A | 2011
Xin-Wen Wang; Deng-Yu Zhang; Guo-Jian Yang; Shi-Qing Tang; Li-Jun Xie
Remote information concentration (RIC) in
Quantum Information Processing | 2009
Xin-Wen Wang; Guo-Jian Yang; Yu-Huan Su; Min Xie
d
Journal of Optics B-quantum and Semiclassical Optics | 2003
Kaige Wang; Guo-Jian Yang; Alessandra Gatti; L. A. Lugiato
-level systems (qudits) is studied. It is shown that the quantum information initially distributed in three spatially separated qudits can be remotely and deterministically concentrated to a single qudit via an entangled channel without performing any global operations. The entangled channel can be different types of genuine multipartite pure entangled states which are inequivalent under local operations and classical communication. The entangled channel can also be a mixed entangled state, even a bound entangled state which has a similar form to the Smolin state, but has different features from the Smolin state. A common feature of all these pure and mixed entangled states is found; i.e., they have
Optics Express | 2015
Xiaobo Chen; Song Li; Gregory J. Salamo; Yongliang Li; Lizhu He; Guo-Jian Yang; Yan Gao; Quanlin Liu
{d}^{2}
Optics Express | 2013
Xiaobo Chen; Gregory J. Salamo; Guo-Jian Yang; Yongliang Li; Xianlin Ding; Yan Gao; Quanlin Liu; Jinghua Guo
common commuting stabilizers. The differences of qudit-RIC and qubit-RIC (
Physics Letters A | 2003
Lin Zhang; Guo-Jian Yang; De-Zhong Cao
d=2
Journal of Optics B-quantum and Semiclassical Optics | 2003
Kaige Wang; Fanglin Peng; Guo-Jian Yang
) are also analyzed.
Scientific Reports | 2017
Xiaobo Chen; Song Li; Lili Hu; Kezhi Wang; Guoying Zhao; Lizhu He; Jinying Liu; Chunlei Yu; Jingfu Tao; Wei Lin; Guo-Jian Yang; Gregory J. Salamo
Simple schemes are proposed for implementing deterministic teleportation, superdense coding, and quantum information splitting with W-type entangled states. The physical realization of these schemes should be much simpler than previous ones due to the assistance of an auxiliary particle. We illustrate the ideas in cavity quantum electrodynamics. The important features of our schemes can also be demonstrated in other systems.
Quantum Information Processing | 2017
Guo-Zhu Song; Guo-Jian Yang; Mei Zhang
We analyse a scheme for phase-sensitive amplification of an optical image without using Fourier-transforming lenses, as carried out in a recent experiment. Our analysis shows that the scheme works well with a broadband amplifier, which ensures that the output image is a faithful copy of the object. In addition, when the area of the pixel detector is close to the minimum imaging resolution, both a large output signal-to-noise ratio and noiseless amplification can be realized.