共查询到20条相似文献,搜索用时 31 毫秒
1.
Yi-you Nie Yue Xu Yuan-hua Li Ming-huang Sang 《International Journal of Theoretical Physics》2014,53(4):1299-1307
We present a scheme for implementing the deterministic quantum state sharing of an arbitrary three-atom state by using a five-atom cluster state and a Bell-state in cavity QED. In the scheme, it does not involve Bell-state measurement and only needs to perform the single-atom measurements. Our scheme is not sensitive to both the cavity decay and the atom radiation, which is of importance in view of decoherence. 相似文献
2.
An experimental scheme on controlled quantum state transfer is proposed in cavity quantum electrodynamics (QED) without joint Bell-state measurement (BSM). A quantum state can be transferred perfectly with the help of the cooperation of the third side by constructing a three-atom GHZ entangled state as the controlled channel. This scheme is insensitive to the cavity decay and the thermal field. The probability of the success in our scheme is 1.0. 相似文献
3.
A realizable scheme is proposed for implementing quantum information splitting with five-atom cluster state in cavity QED,
where we explicitly illustrate the procedure. The scheme does not involve Bell-state measurement and is insensitive to the
cavity and the thermal field. 相似文献
4.
We demonstrate that an eight-atom composite W-Bell state can be used to realize the deterministic quantum state sharing of an arbitrary two-atom state in cavity QED. In the scheme, it does not involve Bell-state measurement and only needs to perform the single-atom measurements. Our scheme is not sensitive to both the cavity decay and the atom radiation, which is of importance in view of decoherence. 相似文献
5.
Quantum Information Splitting of an Arbitrary Three-Atom State by Using W-class States in Cavity QED
We demonstrate that four sets of W-class states can be used to realize the deterministic quantum information splitting of an arbitrary three-atom state in cavity QED. The scheme does not involve Bell-state measurement and is insensitive to both the cavity decay and the thermal field. 相似文献
6.
We demonstrate that three sets of W-class states can be used to realize the deterministic quantum information splitting of an arbitrary two-atom state in cavity QED. The scheme does not involve Bell-state measurement and is not sensitive to both the cavity decay and the thermal field. 相似文献
7.
We demonstrate that a genuinely entangled five-atom state can be used to realize the deterministic quantum information splitting
of an arbitrary two-atom state in cavity QED. The scheme does not involve Bell-state measurement and is insensitive to both
the cavity decay and the thermal field. The presented protocol is showed to be secure against certain eavesdropping attacks. 相似文献
8.
Hu-ping Zhu 《International Journal of Theoretical Physics》2013,52(5):1588-1592
We demonstrate that a genuine six-atom entangled state can be used to realize the deterministic quantum state sharing of an arbitrary single-atom state in cavity QED. The scheme does not involve Bell-state measurement and is insensitive to both the cavity decay and the thermal field. In our scheme, any one of the two agents is sufficient to reconstruct the original state only under the condition that he/she obtains the help of the other one, but one of them obtains no information. 相似文献
9.
Shi-Qing Tang Chuan-Jia Shan Xiu-Xing Zhang 《International Journal of Theoretical Physics》2010,49(8):1899-1903
A simply protocol for quantum teleportation of an unknown two-atom entangled state using four-atom cluster state is investigated
in cavity quantum electrodynamics (QED). In this protocol, by using a one-dimensional maximally four-atom cluster state as
quantum channel, an unknown two-atom entangled state can be transmitted from the sender (Alice) to the receiver without apparent
joint Bell-state measurement. According to the results measured by the sender, the receiver can obtain the original state
with unit successful probability. The important features of our scheme can also be demonstrated in ion trap system. 相似文献
10.
利用非Bell基测量实现两粒子纠缠态的隐形传输 总被引:2,自引:1,他引:1
研究无Bell基测量的未知两粒子纠缠态的隐形传态方案。Alice需传送未知两原子纠缠态给Bob,以她和Bob的原子组成的最大纠缠GHZ态作为量子信道,通过两原子同时在一个强经典驱动场驱动下和一个单模腔场发生相互作用,产生态的演化,从而实现隐形传态。本方案可忽略腔场热作用和腔延迟作用的影响,传送成功的总几率为1。 相似文献
11.
基于弱非线性及线性光学元件提出非破坏性测量两光子Bell态及三光子 Greenberger-Horne-Zeilinger (GHZ)态方案. 方案中, 首先应用光束分束器及交叉克尔非线性介质对两光子Bell态进行对称性分析, 进而结合控制非门提出三光子分析方案实现对八个三光子GHZ态完全且非破坏性区分.
关键词:
Bell态测量
Greenberger-Horne-Zeilinger态测量
弱非线性
量子非破坏性测量 相似文献
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14.
Probabilistic teleportation of an unknown N-atom state using a two-atom nonmaximally entangled state in cavity QED 总被引:1,自引:0,他引:1 下载免费PDF全文
We present a scheme for realizing probabilistic teleportation of an unknown N-atom state via cavity QED. This scheme requires only a nonmaximally entangled pair to be used as a quantum channel, so the requirement of entanglement is reduced. In addition, our scheme does not involve the Bell-state measurement and is insensitive to the cavity decay, which is important from the experimental point of view. If the quantum channel is a two-atom maximally entangled state, teleportation of an unknown N-atom state can be realized by a simpler scheme via cavity QED. 相似文献
15.
We propose a scheme for the teleportation of an arbitrary quantum state in trapped ions. In this scheme, two pairs of maximally
two-qubit entangled state are required as the quantum channel. This scheme does not involve apparent Bell-state measurement
and is insensitive to the heating of the vibrational mode. The probability of the success in our scheme can reach 1.0. 相似文献
16.
A scheme for transferring an unknown atomic entangledstate via cavity quantum electrodynamics 下载免费PDF全文
In this paper, we propose a scheme for transferring an unknown atomic entangled
state via cavity quantum electrodynamics (QED). This scheme, which has a successful
probability of 100 percent, does not require Bell-state measurement and performing
any operations to reconstruct an initial state. Meanwhile, the scheme only involves
atom--field interaction with a large detuning and does not require the transfer of
quantum information between the atoms and cavity. Thus the scheme is insensitive to
the cavity field states and cavity decay. This scheme can also be extended to
transfer ring an entangled state of $n$-atom. 相似文献
17.
Multiparty Quantum Secret Sharing of Classical Message using Cavity Quantum Electrodynamic System 下载免费PDF全文
An experimental feasible scheme of multiparty secret sharing of classical messages is proposed, based on a cavity quantum electrodynamic system. The secret messages are imposed on atomic Bell states initially in the sender's possession by local unitary operations. By swapping quantum entanglement of atomic Bell states, the secret messages are split into several parts and each part is distributed to a separate party. In this case, any subset of the entire party group can not read out the secret message but the entirety via mutual cooperations. In this scheme, to discriminate atomic Bell states, additional classical fields are employed besides the same highlydetuned single-mode cavities used to prepare atomic Bell states. This scheme is insensitive to the cavity decay and the thermal field, and usual joint Bell-state measurements are unnecessary. 相似文献
18.
Jianfei Shi Baojun Ge Dongxin Wang 《International Journal of Theoretical Physics》2016,55(6):2928-2930
We demonstrate that a four-ion cluster state can be used to realize the quantum state transfer in the ion-trap systems. The scheme does not involve Bell-state measurement and is insensitive to both the initial motional state and heating. 相似文献
19.
CAO Hai-Jing SONG He-Shan 《理论物理通讯》2006,46(7)
A new theoretical quantum key distribution scheme based on entanglement swapping is proposed, where four-qubit symmetric W state functions as quantum channel. It is shown that two legitimate users can secretly share a series of key bits by using Bell-state measurements and classical communication. 相似文献
20.
Quantum Key Distribution Using Four-Qubit W State 总被引:3,自引:0,他引:3
CAO Hai-Jing SONG He-Shan 《理论物理通讯》2006,46(1):65-68
A new theoretical quantum key distribution scheme based on entanglement swapping is proposed, where four-qubit symmetric W state functions as quantum channel. It is shown that two legitimate users can secretly share a series of key bits by using Bell-state measurements and classical communication. 相似文献