Dual quantum nondemolition measurements via successive soliton collisions
Dual quantum nondemolition measurements via successive soliton collisions
复制标题
通过连续孤子碰撞进行双量子非破坏测量
DOI：
10.1103/physrevlett.84.59
复制
发表时间：
2000
影响因子：
8.6
通讯作者：
Machida
中科院分区：
文献类型：
--
作者：
Friberg;Mukai;Machida
量子力学允许在不改变的情况下测量量子不破坏(QND)变量。这要求QND变量最初处于本征态，并且测量反作用噪声被引导到共轭变量。因此，实验演示需要两个测量：第一个测量将变量压缩到本征态，第二个测量显示与第一个相同的结果。在这里，我们报告了两个连续的孤子-碰撞QND测量的结果，光学相关测量表明这两个结果几乎相同。
Quantum mechanics allows quantum nondemolition (QND) variables to be measured without being changed. This requires QND variables to be initially in an eigenstate and measurement backaction noise to be directed into conjugate variables. Experimental demonstrations thus require two measurements: the first to collapse variables toward an eigenstate and the second to show results identical to the first. Here, we report results from two successive soliton-collision QND measurements that optical correlation measurements show to be nearly identical.