Quantum Computers - Errors in the machine in Scientific American of May 2022

This document contains comments about the article Errors in the machine by Zaira Nazario In Scientific American of May 2022.
The same physics that makes quantum computers powerful also makes them finicky. New techniques aim to correct errors faster than they can build up.
To read the article select this link: https://www.scientificamerican.com/article/how-to-fix-quantum-computing-bugs/

"Introduction"

It is a law of physics that everything that is not prohibited is mandatory. Errors are thus unavoidable.
It becomes more or less a golden rule in industry that errors are normal and are unavoidable. That is wrong. Be very carefull with using the concept: "a law of physics" two explain two 'concepts' prohibited and mandatory.: Error correction is one of the most fundamental concepts in information technology.
No its not. BR> Errors in information technology are mainly based on hardware problems. If they happen the hardware should be repaired.BR> Errors can also be based on software problems. Again they should be repaired. After they are solved the system should run without any failure. In a quantum computer this is a different story, because the whole system operates based on probabilities. The consequence is that the final answer is not always the same.: Errors may be inevitable, but they are also fixable.
That is the question.: This law of inevitability applies equally to quantum computers.
Errors are fixable in a classical digital PC. There exists no quarantee that all types of errors can be fixed in a QC.
: By combining qubits through a quantum phenomenon called entanglement, we can store vast amounts of information collectively, much more than the same number of ordinary computer bits can.
The question is how reliable this process is, specific for a long period of time.: By combining qubits through a quantum phenomenon called entanglement, we can store vast amounts of information collectively, much more than the same number of ordinary computer bits can.
Yes. But how reliable is that?

Correcting Errors

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Created: 1 May 2022

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