Journal
PHYSICAL REVIEW A
Volume 91, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.91.042301
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Funding
- US AFOSR Grant [FA9550-11-1-0297]
- QuOReP (BMBF in Germany)
- HIPERCOM (ERA-Net CHIST-ERA)
- Vienna Science and Technology Fund (WWTF) [ICT12-041]
- Army Research Office (ARO) Grant [W911NF-14-1-0133]
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We develop a scheme for generating a universal qubit cluster state using probabilistic Bell measurements without the need for feed-forward. Borrowing ideas from percolation theory, we numerically show that using unambiguous Bell measurements that succeed with 75% success probability one could build a cluster state with an underlying pyrochlore geometry such that the probability of having a spanning cluster approaches unity in the limit of infinite lattice size. The initial resources required for the generation of a universal state in our protocol are three-qubit cluster states that are within experimental reach and are a minimal resource for a Bell-measurement-based percolation proposal. Since single and multiphoton losses can be detected in Bell measurements, our protocol raises the prospect of a fully error-robust scheme.
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