Arbitrarily Large Continuous-Variable Cluster States from a Single Quantum Nondemolition Gate

Details Arbitrarily Large Continuous-Variable Cluster States from a Single Quantum Nondemolition Gate Arbitrarily Large Continuous-Variable Cluster States from a Single Quantum Nondemolition Gate

2010-02-22

arxiv.org/abs/1002.4094v2

Phys. Rev. Lett. 104, 250503 (2010)

Physics

Quantum Physics

(v2) 5 pages, 4 color figures, added brief mention of fault tolerance, version accepted for publication (note: actual publishe

Scientific paper

10.1103/PhysRevLett.104.250503

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.

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