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Bibliographic Details
Main Authors: Pankovich, Brendan, Kan, Angus, Wan, Kwok Ho, Ostmann, Maike, Neville, Alex, Omkar, Srikrishna, Sohbi, Adel, Brádler, Kamil
Format: Preprint
Published: 2023
Subjects:
Online Access:https://arxiv.org/abs/2308.04192
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Table of Contents:
  • We propose fault-tolerant architectures based on performing projective measurements in the Greenberger-Horne-Zeilinger (GHZ) basis on constant-sized, entangled resource states. We present linear-optical constructions of the architectures, where the GHZ-state measurements are encoded to suppress the errors induced by photon loss and the probabilistic nature of linear optics. Simulations of our constructions demonstrate high single-photon loss thresholds compared to the state-of-the-art linear-optical architecture realized with encoded two-qubit fusion measurements performed on constant-sized resource states. We believe this result shows a resource-efficient path to achieving photonic fault-tolerant quantum computing.