Publication

Robust fault tolerance for continuous-variable cluster states with excess antisqueezing

22/07/2019

Walshe, BW; Mensen, LJ; Baragiola, B; Menicucci, NC

PHYSICAL REVIEW A, 100, 10301 (2019)

Robust fault tolerance for continuous-variable cluster states with excess antisqueezing

The immense scalability of continuous-variable cluster states motivates their study as a platform for quantum computing, with fault tolerance possible given sufficient squeezing and appropriately encoded qubits [N. C. Menicucci, Phys. Rev. Lett. 112, 120504 (2014)]. Here, we expand the scope of that result by showing that additional antisqueezing has no effect on the fault-tolerance threshold, removing the purity requirement for experimental continuous-variable cluster-state quantum computing. We emphasize that the appropriate experimental target for fault-tolerant applications is to directly measure 15-17 dB of squeezing in the cluster state rather than the more conservative upper bound of 20.5 dB.

University: RMIT University

Authors Centre Participants: Mr. Blayney Walshe, Mr. Lucas Mensen, Dr. Ben Baragiola, Dr. Nicolas C Menicucci

Source: Physical Review A

Publication Type: Refereed Journal article

DOI Link: DOI Link

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