Joseph Touch wrote:
Noise isn’t the only focal point of skepticism; at least one other is full-entanglement scale, which has essentially remained static for decades (8-way recently leaping to 10-way).
However, recursive application increases distance, not numbers of entangled parties.
As noise destroys entangled states, improved SNR by recursive QEC was expected to increase the number of entangled parties. Masataka Ohta
