Related Experiment Video
Updated: Jan 9, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Linear-Optical Quantum Computation with Arbitrary Error-Correcting Codes
Blayney W Walshe1, Ben Q Baragiola1,2, Hugo Ferretti1
1Xanadu Quantum Technologies Inc., Toronto, Ontario, Canada.
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.
Related Concept Videos
Propagation of Uncertainty from Random Error
Propagation of Uncertainty from Systematic Error
Types of Errors: Detection and Minimization
Absolute error in a measurement is the numerical difference from the true or central value. Relative error is the ratio between absolute error and the true or central value, expressed as a percentage.
Errors can be classified by source, magnitude, and sign. There are three types of errors: systematic, random, and gross.
Systematic or...
NMR Spectrometers: Resolution and Error Correction
Detection of Gross Error: The Q Test
Woodward–Hoffmann Selection Rules and Microscopic Reversibility

