Yuan-hua Li
Jiangxi Normal University
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Publication
Featured researches published by Yuan-hua Li.
Quantum Information Processing | 2011
Yi-you Nie; Yuan-hua Li; Jun-chang Liu; Ming-huang Sang
A new application of the four-qubit cluster state is investigated for quantum information splitting (QIS) of an arbitrary three-qubit state. Muralidharan and Panigrahi (Phys Rev A 78:062333, 2008) argued that a four-qubit cluster state is impossible for QIS of an arbitrary two-qubit state. In this paper, we demonstrate that two four-qubit cluster states can be used to realize the deterministic QIS of an arbitrary three-qubit state by performing only the Bell-state measurements. Our scheme considered here is secure against certain eavesdropping attacks.
Quantum Information Processing | 2013
Yuan-hua Li; Xiao-lan Li; Ming-huang Sang; Yi-you Nie; Z. S. Wang
A scheme is presented to implement bidirectional controlled quantum teleportation (QT) by using a five-qubit entangled state as a quantum channel, where Alice may transmit an arbitrary single qubit state called qubit A to Bob and at the same time, Bob may also transmit an arbitrary single qubit state called qubit B to Alice via the control of the supervisor Charlie. Based on our channel, we explicitly show how the bidirectional controlled QT protocol works. By using this bidirectional controlled teleportation, espcially, a bidirectional controlled quantum secure direct communication (QSDC) protocol, i.e., the so-called controlled quantum dialogue, is further investigated. Under the situation of insuring the security of the quantum channel, Alice (Bob) encodes a secret message directly on a sequence of qubit states and transmits them to Bob (Alice) supervised by Charlie. Especially, the qubits carrying the secret message do not need to be transmitted in quantum channel. At last, we show this QSDC scheme may be determinate and secure.
Quantum Information Processing | 2011
Yi-you Nie; Yuan-hua Li; Jun-chang Liu; Ming-huang Sang
We demonstrate that a four-qubit cluster state can be used to realize the deterministic quantum state sharing (QSTS) of an arbitrary four-qubit GHZ-type state among three parties by introducing three ancillary qubits and performing three controlled-NOT operations. In our scheme, any one of the two agents has the ability to reconstruct the original state if he/she collaborates with the other one, whilst individual agent obtains no information.
Quantum Information Processing | 2013
Yi-you Nie; Yuan-hua Li; Z. S. Wang
By using a generalized Greenberger–Horne–Zeilinger (GHZ) state in which is locally unitarily connected with standard GHZ state as a communication channel, semi-quantum key distribution is extended to study semi-quantum information splitting protocols for secret sharing of quantum information. In our scheme, quantum Alice splits arbitrary two, three and N-qubit states with two classical parties, Bob and Charlie, in a way that both parties are sufficient to reconstruct Alice’s original states only under the condition of which she/he obtains the help from another one, but one of them cannot. The presented protocols are helpful for both secure against certain eavesdropping attacks and economical in processing of quantum information.
Quantum Information Processing | 2013
Yi-you Nie; Yuan-hua Li; Xian-ping Wang; Ming-huang Sang
We present a simple scheme for implementing controlled dense coding by using a five-atom cluster state. In cavity QED systems, we have proposed to generate a five-atom cluster state and demonstrated that the four-atom entangled states can be exactly distinguished. Thus our approach can be realized with present cavity QED techniques.
Optics Express | 2014
Yi-you Nie; Yuan-hua Li; Zhijing Wu; Xian-ping Wang; Wen Yuan; Ming-huang Sang
We present a novel and simple optical structure, i.e., the symmetrical metal-cladding waveguide, in which a polymer layer is added into the guiding layer, for sensitive detection of chemical vapor by using the enhanced Goos-Hänchen (GH) shift (nearly a millimeter scale). Owing to the high sensitivity of the excited ultrahigh-order modes, the vapor-induced effect (swelling effect and refractive index change) in the polymer layer will lead to a dramatic variation of the GH shift. The detected GH shift signal is irrelevant to the power fluctuation of the incident light. The detection limit of 9.5 ppm for toluene and 28.5 ppm for benzene has been achieved.
International Journal of Quantum Information | 2011
Yi-you Nie; Yuan-hua Li; Jun-chang Liu; Ming-huang Sang
We demonstrate that a genuine six-qubit entangled state introduced by Tapiador et al. [J. Phys. A42 (2009) 415301] can be used to realize the deterministic controlled teleportation of an arbitrary three-qubit state by performing only the Bell-state measurements.
Optics Communications | 2011
Yi-you Nie; Yuan-hua Li; Jun-chang Liu; Ming-huang Sang
International Journal of Theoretical Physics | 2013
Qin-nan Zhang; Cui-cui Li; Yuan-hua Li; Yi-you Nie
International Journal of Theoretical Physics | 2010
Yuan-hua Li; Jun-chang Liu; Yi-You Nie