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  • Open Access

Teleportation-based squeezer for bosonic cluster states

Michal Matulík*, Radim Filip†, and Petr Marek‡

  • Department of Optics, Palacký University, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic

  • *Contact author: matulik@optics.upol.cz
  • †Contact author: filip@optics.upol.cz
  • ‡Contact author: marek@optics.upol.cz
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Phys. Rev. Research 8, 033001 – Published 1 July, 2026

DOI: https://doi.org/10.1103/78tf-57jf

Abstract

The one-way quantum computation utilizing bosonic modes of light offers unmatched scalability of light modes, and it has seen rapid experimental development recently. Scalability requires robust and low-error gates and measurements. Squeezing gate is one of the necessary Gaussian operations. We find the optimal squeezing gate in cluster-state architecture. Our approach newly uses amplitude transmission coefficients of unbalanced beam splitters and homodyne detection with subsequent unity-gain feedforward to squeeze the input state. The approach outperforms the current method based on optimally rotated homodyne detection but fixed balanced beam splitters. The performance of both cluster-state squeezers is evaluated for Gaussian and non-Gaussian input states. We use different metrics to benchmark the quality of squeezed output states. The result opens a road to low-noise squeezing gates in experimentally achievable cluster states.

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Phys. Rev. Research 8, 033001– Published 1 July, 2026
  • Received 3 December 2025
  • Accepted 27 May 2026
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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