论文标题
远程钟声从局部测量和多体远程静脉
Long-Range Bell States from Local Measurements and Many-Body Teleportation without Time-Reversal
论文作者
论文摘要
在这项工作中，我们研究了量子多体向传送，在该量子器上，由于在几个量子位上进行了争夺统一和局部测量，因此通过强烈相互交互的量子系统传送单个量子。通常的多体传送协议需要系统的双副本，然后向后的时间演变，我们证明在没有这些约束的情况下，在2D旋转$ 1/2 $ XY模型中可能进行传送。托管特殊特征状态的彩虹疤痕的模型产生了必要的远程纠缠。我们概述了一个特定的协议，用于通过进化产品状态并仅对两个具有反馈控制的量子位进行迭代测量来准备这种高度纠缠的状态。
In this work, we study quantum many-body teleportation, where a single qubit is teleported through a strongly-interacting quantum system, as a result of a scrambling unitary and local measurements on a few qubits. Usual many-body teleportation protocols require a double copy of the system, and backward time evolution, we demonstrate that teleportation is possible in the 2D spin-$1/2$ XY model, without these constraints. The necessary long-range entanglement for teleportation is generated from the model hosting special eigenstates known as rainbow scars. We outline a specific protocol for preparing this highly entangled state by evolving a product state and performing iterative measurements on only two qubits with feedback control.
