2008/04/30 by Mitsuyoshi Yukawa, Ryuji Ukai, Peter van Loock +1
Computer Science · Mathematics · Physics and Astronomy · #Algorithm #Beam splitter #Cluster (spacecraft) #Cluster state #Computation #Computer science #Continuous variable #Gaussian #Mathematical analysis #Mathematical optimization #Mathematics #Neural Networks and Reservoir Computing #Physics #Quantum #Quantum Information and Cryptography #Quantum computer #Quantum mechanics #Quantum optics and atomic interactions #Realization (probability) #Statistical physics #Statistics #Variable (mathematics) #quant-ph
paper · pdf · doi:10.1103/physreva.78.012301
published as Phys. Rev. A 78,012301 (2008) · 5 pages, 4 figures
arxiv created 2008/05/28 · openalex publication_date 2008/07/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Continuous-variable Gaussian cluster states are a potential resource for universal quantum computation. They can be efficiently and unconditionally built from sources of squeezed light using beam splitters. Here we report on the generation of three different kinds of continuous-variable four-mode cluster states. In our realization, the resulting cluster-type correlations are such that no corrections other than simple phase-space displacements would be needed when quantum information propagates through these states. At the same time, the inevitable imperfections from the finitely squeezed resource states and from additional thermal noise are minimized, as no antisqueezing components are left in the cluster states.