Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5, Canada.
Phys Rev Lett. 2010 Jun 25;104(25):250503. doi: 10.1103/PhysRevLett.104.250503. Epub 2010 Jun 23.
We present a compact experimental design for producing an arbitrarily large optical continuous-variable cluster state using just one single-mode vacuum squeezer and one quantum nondemolition gate. Generating the cluster state and computing with it happen simultaneously: more entangled modes become available as previous modes are measured, thereby making finite the requirements for coherence and stability even as the computation length increases indefinitely.
我们提出了一种紧凑的实验设计，仅使用单个单模真空压缩器和一个量子非破坏性门就可以产生任意大的光学连续变量簇态。产生簇态和进行计算是同时进行的：随着先前模式的测量，更多的纠缠模式变得可用，从而即使在计算长度无限增加的情况下，也使相干性和稳定性的要求变得有限。
