Second, the codes are typically 7 or 8 bits, which makes for an inefficient use of a 16-bit memory structure. This is handled by using the same memory chip for data and codes. This is referred to as ...
"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 ...