Measurement-induced continuous-variable quantum interactions
Measurement-induced continuous-variable quantum interactions
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DOI：
10.1103/physreva.71.042308
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发表时间：
2005-04-01
影响因子：
2.9
通讯作者：
Andersen, UL
中科院分区：
文献类型：
--
作者：
Filip, R;Marek, P;Andersen, UL
我们提出了可行的实现基本连续变量（CV）相互作用（挤压，参数放大器和量子非拆除相互作用）光模式之间，而不需要在线非线性耦合在强泵浦光介质。该方法完全基于线性光学、纯差检测和离线压缩辅助状态，因此代表了测量诱导非线性方法的CV模拟，该方法以前用于单光子量子比特实验，以概率实现受控非门。
We propose feasible implementations of basic continuous-variable (CV) interactions (squeezer, parametric amplifier, and quantum nondemolition interaction) between light modes without the requirement for in-line nonlinear couplings in a strongly pumped optical medium. The method is based entirely on linear optics, homodyne detection, and off-line squeezed ancillary states and therefore represents the CV analog of the measurement-induced nonlinearity approach, previously used in single-photon qubit experiments to probabilistically implement a controlled-NOT gate.