Arbitrarily large continuous-variable cluster states from a single quantum nondemolition gate.
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.
Menicucci
Nicolas C
NC
Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5, Canada.
Ma
Xian
X
Ralph
Timothy C
TC