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首页> 外文期刊>Open Journal of Microphysics >Remote Quantum-Information Concentration: Reversal of Ancilla-Free Phase-Covariant Telecloning
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Remote Quantum-Information Concentration: Reversal of Ancilla-Free Phase-Covariant Telecloning

机译:远程量子信息浓度:无阿西拉相变协克隆的逆转

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Telecloning and its reverse process, referred to as remote quantum-information concentration (RQIC), have been attracting considerable interest because of their potential applications in quantum-information processing. The previous RQIC protocols were focused on the reverse process of the optimal universal telecloning. We here study the reverse process of ancilla-free phase-covariant telecloning (AFPCT). It is shown that the quantum information originally distributed into two spatially separated qubits from a single qubit via the optimal AFPCT procedure can be remotely concentrated back to a single qubit with a certain probability by using an asymmetric W state as the quantum channel.
机译:远程克隆及其反向过程,称为远程量子信息集中(RQIC),由于其在量子信息处理中的潜在应用而引起了极大的兴趣。先前的RQIC协议专注于最佳通用远程克隆的反向过程。我们在这里研究无阿西拉相变遥传(AFPCT)的反向过程。结果表明,通过使用非对称W状态作为量子通道,通过最佳AFPCT程序最初从单个量子位分配到两个空间分离的量子位中的量子信息可以以一定的概率远程集中回到单个量子位。

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