论文标题
具有偶极有序初始状态的多个量子NMR中的多旋纠缠
Many-spin entanglement in multiple quantum NMR with a dipolar ordered initial state
论文作者
论文摘要
具有偶极有序初始状态的多量子（MQ）NMR为探索多旋纠缠开辟了新的可能性。在本文中，我们研究了在MQ NMR的条件下，具有偶极性有序初始状态的纳米腔的自旋分子（原子）中的多旋纠缠。在量子渔民信息上提供了下限的MQ NMR相干强度分布的第二刻，用于估计纠缠旋转的数量。在不同的温度和不同数量的旋转下研究了多旋纠缠。
Multiple quantum (MQ) NMR with a dipolar ordered initial state opens new possibilities for the exploration of many-spin entanglement. In this paper, we investigate many-spin entanglement in a gas of spin-carrying molecules (atoms) in nanocavities in the conditions of MQ NMR with a dipolar ordered initial state. The second moment of the distribution of the intensities of MQ NMR coherences, which provides a lower bound on the quantum Fisher information, is used for an estimate of the number of the entangled spins. Many-spin entanglement is investigated at different temperatures and different numbers of spins.
