"Our quantum error-correcting code has a greater than 1/2 code rate, targeting hundreds of thousands of logical qubits," explains Kasai. "Moreover, its decoding complexity is proportional to the ...

Two-dimensional projection of a quantum spherical code composed of two copies (black and red) of the four complex dimensional Witting polytope. This code can correct up to five photon losses of any ...

THE AGE of quantum computing is coming closer, presenting both an opportunity and a risk for individuals, companies and governments. Host Alok Jha explores why quantum computers threaten to crack the ...