Control-limited perfect state transfer, quantum stochastic resonance, and many-body entangling gate in imperfect qubit registers
Control-limited perfect state transfer, quantum stochastic resonance, and many-body entangling gate in imperfect qubit registers
复制标题
DOI：
10.1103/physreva.77.062337
复制
发表时间：
2008-06-01
影响因子：
2.9
通讯作者：
Huelga, S. F.
中科院分区：
文献类型：
--
作者：
Di Franco, C.;Paternostro, M.;Huelga, S. F.
我们提出了一个协议，完美的量子态转移，是弹性的现实实验缺陷，包括噪声源，可以建模为独立的马尔可夫浴或某些形式的空间相关的环境。我们强调有趣的连接之间的保真度状态转移和量子随机共振效应。该方案足够灵活，可以作为一个有效的纠缠门，在控制受限的情况下产生真正的多体纠缠。可能的实验实现使用超导量子位也简要讨论。
We propose a protocol for perfect quantum state transfer that is resilient to a broad class of realistic experimental imperfections, including noise sources that could be modeled either as independent Markovian baths or as certain forms of spatially correlated environments. We highlight interesting connections between the fidelity of state transfer and quantum stochastic resonance effects. The scheme is flexible enough to act as an effective entangling gate for the generation of genuine multipartite entanglement in a control-limited setting. Possible experimental implementations using superconducting qubits are also briefly discussed.