Work

Linear-Optical Quantum Computation with Arbitrary Error-Correcting Codes

Year: 2025

Type: article

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.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.134.100602

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

Institutions: Xanadu Quantum Technologies (Canada), Centre for Quantum Computation and Communication Technology, RMIT University, University of Waterloo, Perimeter Institute, Macquarie University

Language: English

Topic: Quantum Computing Algorithms and Architecture

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funder: Mitacs

OpenAlex ID: W4408447366

FWCI: 4.228

Cites: 55

Cited by: 18

Related to: 10