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arXiv quant-ph/0607091quant-ph
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时域爱因斯坦-波多尔斯基-罗森相关

Time domain Einstein-Podolsky-Rosen correlation

Nobuyuki Takei, Noriyuki Lee, Daiki Moriyama, J. S. Neergaard-Nielsen, Akira Furusawa

摘要:

我们实验证明创建和表征的爱因斯坦-波多尔斯基-罗森(EPR)光束之间的相关性在时域。利用两个独立的连续波光学参量振荡器和一个半分束器产生相关光束。我们使用一个持续时间为$T$的方形时间滤波器定义时间模式,并对生成的状态进行时间分辨测量。我们观察到对应于EPR相关的相关共轭变量之间的相关性。我们的方案可以推广到连续变量的非高斯态的量子隐形传态,如薛定谔猫态。

英文摘要:

We experimentally demonstrate creation and characterization of Einstein-Podolsky-Rosen (EPR) correlation between optical beams in the time domain. The correlated beams are created with two independent continuous-wave optical parametric oscillators and a half beam splitter. We define temporal modes using a square temporal filter with duration $T$ and make time-resolved measurement on the generated state. We observe the correlations between the relevant conjugate variables in time domain which correspond to the EPR correlation. Our scheme is extendable to continuous variable quantum teleportation of a non-Gaussian state defined in the time domain such as a Schrödinger cat-like state.

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