Interresting practical results about Error correction effectiveness on real QC hardware

In this post, James R. Wootton, University of Basel, shows the effectiveness of Error code correction using the 16 Qubits Processor of IBM.

What is interresting to me is the practical results obtained and how the experiments was conducted

See quote of the article below

If we try to store our bit using just a single qubit, the probability of an error over the timescale of the experiment can be between 10% and 20%. The goal of using error correction is to reduce this. The bigger the error correcting code, the less likely an error should be.

The smallest case I considered  was a repetition code with 3 code qubits (with an additional two qubits, the ancillas, helping to make measurements). When storing a 1, the probability of an error is around 4%. This is already better than a single qubit.

The largest case I considered had 8 code qubits (plus 7 ancillas). The probability of an error in this case was 0.025%, which is much better than a single qubit.

Worth reading and experiments by yourself !

Trust me : Computing’s Hardware have already change over the age !

It this video, called “Quantum Computing: Revolutionizing computation through quantum mechanics“, The Microsoft researcher of Station Q group, Dr Krysta Svore, shows in one slide that  Computing’s Hardware have already change over the age !


From mechanical machines,  early in 100 BC (!) to transistors based actual machines.

This slide could summary my questionning concern about people would seem to not accept that ,in some years, there could  be a evolution of hardware that support our “computing needs”. May be it will be Quantum computing, maybe DNA based computing or something else. But Computing’s hardware could change over the age.

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