共被期刊论文引用了4次
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| 1 | 未知六粒子纠缠态的量子隐形传态及原理验证显示文摘Zhao等提出利用一个八粒子团簇态作为量子信道,实现一个未知六粒子纠缠态的隐形传态方案,他们的方案中发送方需要执行一个八粒子冯·诺依曼投影测量。对他们的方案进行了改进,利用一个四粒子团簇态作为量子信道传送该未知六粒子纠缠态,发送方只需执行简单的门操作和单粒子测量,接收方执行适合的幺正操作并引入四个辅助粒子,就能完成隐形传输的任务。在IBM公司的量子云计算平台上实现了所提出方案的原理验证。与之前的方案相比,所提出改进方案具有低资源消耗、高传送效率和易于实验实现的优点。 | 陈金莲 李冬芬 周覃 杨燕涵 | 2019 | 量子电子学报2019，36，4： | 3 |
| 2 | Logic Bell state concentration with parity check measurement显示文摘Logic qubit plays an important role in current quantum communication. In this paper, we propose an efficient entanglement concentration protocol (ECP) for a new kind of logic Bell state, where the logic qubit is the concatenated Greenber- Horne- Zeilinger (C-GHZ) state. Our ECP relies on the nondemolition polarization parity check (PPC) gates constructed with cross-Kerr nonlinearity, and can distill one pair of maximally entangled logic Bell state from two same pairs of less-entangled logic Bell states. Benefit from the nondemolition PPC gates, the concentrated maximally entangled logic Bell st ate can be remained for further application. Moreover, our ECP can be rcpea ted to further concentrate the less-entangled logic Bell state. By repeating the ECP. the total success probability can be effectively increased. Based on above features, this ECP may be useful in future long-distance quantum communication. | Jiu Liu Lan Zhou Wei Zhong Yu-Bo Sheng | 2019 | Frontiers of physics2019，14，2： | 1 |
| 3 | Recovering information in probabilistic quantum teleportation显示文摘In this paper we redesign the probabilistic teleportation scheme considered in Phys.Rev.A 61,034301(2000)by Wan-Li Li et al.,where the optimal state extraction protocol complements the basic teleportation process with a partially entangled pure state channel,in order to transfer the unknown state with fidelity 1.Unlike that scheme,where the information of the unknown state is lost if the state extraction fails,our proposal teleports exactly and optimally an unknown state,and allows to recover faithfully that state when the process has not succeeded.In order to study the resilience of the scheme,we apply it to the teleportation problem through a quantum channel in a mixed state with pure dephasing.We find that a successful process transfers an unfaithful state,namely,the outcome state acquires the decoherence of the channel,but the unknown state is recovered by the sender with fidelity 1 if the teleportation fails.In addition,in this case,the fidelity of the teleported state has quantum features only if the channel has an amount of entanglement different from zero. | Luis Roa Andrea Espinoza Ariana Munoz Maria L·Ladron de Guevara | 2019 | Frontiers of physics2019，14，6： | 0 |
| 4 | Tight upper bound on the quantum value of Svetlichny operators under local filtering and hidden genuine nonlocality显示文摘Nonlocal quantum correlations among the quantum subsystems play essential roles in quantum science.The violation of the Svetlichny inequality provides sufficient conditions of genuine tripartite nonlocality.We provide tight upper bounds on the maximal quantum value of the Svetlichny operators under local filtering operations,and present a qualitative analytical analysis on the hidden genuine nonlocality for three-qubit systems.We investigate in detail two classes of three-qubit states whose hidden genuine nonlocalities can be revealed by local filtering. | Ling-Yun Sun Li Xu Jing Wang Ming Li Shu-Qian Shen Lei Li Shao-Ming Fei | 2021 | Frontiers of physics2021，16，3： | 0 |
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