Axil, re Quantum computing. This is a special topic to myself and have been tracking developments for the past couple of years with the help of a smart friend who works in the QIP world.
While this particular issue is not exactly LENR, it is a follow-on from the original post. What can be said of QIP and QC is that the advances are occurring so fast that most news or web articles on the topic, are likely to be obsolete.
DWave have progressed through 3 generations of device and now run in excess of 1000 qubits. It is Google who are devising tests that have been run on the DWave device as it appears their own direct QC progress lags quite a bit.
The issue of error correction in a QC relates to the time-to-decoherence experienced between entangles pairs of particles built into any QC. AFAICT this is where various researchers are out of sync in what they are claiming. Some are months (if not years) behind others in improving the stability of the entanglement. One has to be very careful with what one comes up with on the web, on this topic, as there is a very high probability of reading obsolete reports. Also, the source of the reports needs careful weighting as to validity and usefulness. This same issue applies to reading pro and con arguments about the success or disputed success of the many tests conducted in the name of Bell's inequality testing. Reports published this year claim that the final 'loophole' (that some scientists always seem to conjure up) have been laid to rest (but we can be sure yet another claimed 'loophole' will be produced. The real issue re Bell's inequality testing is that each new and more rigorous test using ever more advanced testing techniques, repeatedly shows Bell's theorem is violated and confirms the non-locality case (without hidden variables).
But back to QC. My own understanding is that DWave have been able to demonstrate substantial advances in the use of their newest model and that while 'quantum annealing' might not be the same as conventional software computing with simple bit manipulation, it is working.
Cheers DSM