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Search Results: 1 - 10 of 38282 matches for " Xing-Ri Jin "
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Secret sharing of quantum information via entanglement swapping in cavity QED
Ying-Qiao Zhang,Xing-Ri Jin,Shou Zhang
Physics , 2006, DOI: 10.1016/j.physleta.2005.05.020
Abstract: We proposed a scheme on secret sharing of quantum information based on entanglement swapping in cavity QED. In our scheme, the effects of cavity decay and thermal field are all eliminated.
Generation of unconventional geometric phase gates in ion trap-optical cavity system by squeezed operators
Zhang Ying-Qiao,Jin Xing-Ri,Zhang Shou,
张英俏
,金星日,张 寿

中国物理 B , 2008,
Abstract: Based on squeezed operators this paper has implemented an ideal unconventional geometric quantum gate (GQG) in ion trap-optical cavity system by radiating the trapped ions with the cavity field of frequency $\omega_c}$ and an external laser field of frequency $\omega_L}$. It can ensure that the gate time is shorter than the coherence time for qubits and the decay time of the optical cavity by appropriately tuning the ionic transition frequency $\omega_{0}$, the frequencies of the cavity mode $\omega_c}$ and the vibrational mode $\nu$. It has also realized the unconventional GQG under the influence of the cavity decay based on the squeezed-like operators and found that the present scheme works well for the smaller cavity decay by investigating the corresponding fidelity and success probability.
Secret sharing of quantum information via entanglement swapping
Zhang Ying-Qiao,Jin Xing-Ri,Zhang Shou,
张英俏
,金星日,张 寿

中国物理 B , 2006,
Abstract: Based on entanglement swapping, a scheme for the secret sharing of an arbitrary two-particle entangled state is proposed. If the controllers do not co-operate with the eavesdropper, the eavesdropper's successful probability decreases with the number of the controllers increasing. In addition, only the Bell-state measurements are required to realize the secret sharing scheme.
Probabilistic remote preparation of a two-atom entangled state
Zhang Ying-Qiao,Jin Xing-Ri,Zhang Shou,
张英俏
,金星日,张 寿

中国物理 B , 2005,
Abstract: A scheme for remotely preparing a two-atom entangled state via entanglement swapping in cavity quantum electronic dynamics (QED) with the help of separate measurements is proposed. And the effect of cavity decay is eliminated in our scheme.
Generation of cluster-type entangled squeezed vacuum states

Wen Jing-Ji,Shao Xiao-Qiang,Jin Xing-Ri,Zhang Shou,Yeon Kyu-Hwang,

中国物理 B , 2008,
Abstract: We present a scheme to prepare cluster-type entangled squeezed vacuum states (CTESVS) by considering the two-photon interaction between a two-level atom and a high-quality cavity, driven by a strong classical field. After the realization of simple atomic measurements, the generation of CTESVS in four separate cavities is accomplished within the cavity decay time. In the case of large atom--cavity detuning, the scheme is immune to the effect of atomic spontaneous emission.
Generation of multi-atom cluster states via an unconventional geometric phase shift in cavity QED
Jin Xing-Ri,Zhang Ying-Qiao,Zhang Shou,Jin Dong-Ze,
金星日
,张英俏,张寿,金东泽

中国物理 B , 2007,
Abstract: This paper proposes two schemes to generate the multi-atom cluster states. The first scheme is based on the interaction of atoms with a highly detuned cavity mode and a classical field, the second scheme is based on the interaction of atoms with a cavity mode, strongly driven by a resonant classical field.
Generation of the nonlocal quantum entanglement of three three-level particles by local operations
Jin Xing-Ri,Zhang Ying-Qiao,Jin Zhe,Zhang Shou,
金星日
,张英俏,金哲,张寿

中国物理 B , 2005,
Abstract: We propose a scheme to realize the nonlocal quantum entanglement of three three-level particles by using a three-particle entangled state of three levels as a quantum channel with the aid of some local unitary transformations. This scheme can be directly generalized to the nonlocal quantum entanglement of N three-level particles.
Three-party quantum secure direct communication based on Greenberger-Horne-Zeilinger states
Xing-Ri Jin,Xin Ji,Ying-Qiao Zhang,Shou Zhang,Suc-Kyoung Hong,Kyu-Hwang Yeon,Chung-In Um
Physics , 2006, DOI: 10.1016/j.physleta.2006.01.035
Abstract: We present a three-party simultaneous quantum secure direct communication (QSDC) scheme by using Greenberger-Horne-Zeilinger (GHZ) states. This scheme can be directly generalized to $N$-party QSDC by using $n$-particle GHZ states. We show that the many-party simultaneous QSDC scheme is secure not only against the intercept-and-resend attack but also against the disturbance attack.
Efficient Scheme for Implementing a Fredkin Gate via Resonant Interaction with Two-Mode Cavity Quantum Electrodynamics
fficient Scheme for Implementing a Fredkin Gate via Resonant Interaction with Two-Mode Cavity Quantum Electrodynamics

SHAO Xiao-Qiang,WEN Jing-Ji,JIN Xing-Ri,ZHU Ai-Dong,ZHANG Shou,YEON Kyu-Hwang,
邵晓强
,文晶姬,金星日,朱爱东,张寿,YEON,Kyu-Hwang

中国物理快报 , 2007,
Abstract: A scheme for implementing a Fredkin gate with an atom sent through a microwave cavity is proposed. The scheme is based on the resonant atom-cavity interaction so that the gating time is sharply short, which is important in view of decoherence.
Scheme for Implementing an N-Qubit Phase Gate via Selective Atom--Field Interaction with Cavity Quantum Electrodynamics
Scheme for Implementing an N-Qubit Phase Gate via Selective Atom-Field Interaction with Cavity Quantum Electrodynamics

SHAO Xiao-Qiang,JIN Xing-Ri,ZHU Ai-Dong,ZHANG Shou,YEONKyu-Hwang,
邵晓强
,金星日,朱爱东,张寿,YEON,Kyu-Hwang

中国物理快报 , 2008,
Abstract: A scheme for implementing a two-qubit phase gate with atoms sent through a high-Q optical cavity is proposed by choosing nonidentical coupling constants between the atoms and cavity. The atomic spontaneous emission can be suppressed due to the large atom-field detuning. Moreover, the scheme can be generalized to implement an N-qubit phase gate and the gating time does not change with an increase of the number of qubits.
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