Linear-Optical Quantum Computation with Arbitrary Error-Correcting Codes.

Authors

Blayney W Walshe, Ben Q Baragiola, Hugo Ferretti, José Gefaell, Michael Vasmer, Ryohei Weil, Takaya Matsuura, Thomas Jaeken, Giacomo Pantaleoni, Zhihua Han, Timo Hillmann, Nicolas C Menicucci, Ilan Tzitrin, Rafael N Alexander

Published in

Physical review letters. Volume 134. Issue 10. Pages 100602. Mar 14, 2025.

Abstract

High-rate quantum error-correcting codes mitigate the imposing scale of fault-tolerant quantum computers but require efficient generation of nonlocal, many-body entanglement. We provide a linear-optical architecture with these properties, compatible with arbitrary codes and Gottesman-Kitaev-Preskill qubits on generic lattices, and featuring a natural way to leverage physical noise bias. Simulations of hyperbolic surface codes and bivariate bicycle codes, promising families of quantum low-density parity-check codes, reveal a threshold comparable to the 2D surface code with substantially better encoding rates.

PMID:
40153663
Bibliographic data and abstract were imported from PubMed on 29 Mar 2025.

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