How do quantum computers find and correct their errors?

   

 How do quantum computers find and correct their errors? 

Quantum computers are powerful tools. And even their researchers don't know the entire power of that system. But without an error-handling protocol, those systems are useless. The thing that the system is powerful doesn't mean that the system is trusted. 

The error handling process must be done before the quantum computers are turning trusted systems. That is delivering confirmed data. The error-location and error-correcting protocols are necessary for making full-function quantum computers. 

How do quantum computers locate and correct errors? Without that ability, the quantum system is useless. In normal or binary computers other computers will check the data. But the problem with a quantum computer is that the system would handle more complicated algorithms than binary computers. 

And the quantum computers might complete the calculation in minutes that takes the binary computers even thousands of years. So the binary computers are useless in this process. 

There is one thing that people must remember when they are talking about quantum computers. Quantum computers are more sensitive than binary computers. 

Things like gravitational waves and fast electromagnetic bursts like GRB:s (Gamma-Ray Bursts) and FRB (Fast Radio Bursts) can affect quantum computers. So that thing means that the error-handling capacity in the cases of quantum computers is in the key role for using them in trusted and confirmed operations. 

One version is to use two or more quantum computers for making the calculations. And if there are errors that would send the solution for the rethinking process. That kind of thing is one of the versions of the problem called error handling. 

Many things can make to ensure the results that quantum computers can get. One of them is to use control calculations. 

The well-known algorithms are giving confirmed results. And they can use for finding errors in quantum computers. 

And if there is a difference between the confirmed result and the result that is forming in quantum computers control drive. The quantum computer and its operator get information that there is an error in the system. Another way to ensure the calculation is to make the process multiple times. And if there are differences between results- There is some kind of mistake.

But before the quantum computer can benefit in full-scale operations. The error probability of that system. Must be determined. That thing can make by sending some simple calculations through the system billions of times. And the difference between answers is telling that there is some kind of error. In history, there is an example of a simple error in the function of the microchip. 

And that thing is called the "1+1 problem". When the microprocessor is handling data. By using extremely high speed. There is the possibility that some of its gates or switches are stuck. That thing causes that the computer will calculate the result of 1+1 being something else than 2. That thing causes problems with data handling capacity. The thing is that quantum computers are extremely powerful tools. 

But there is the possibility that some outcoming effect like GRB (Gamma Ray Burst) or gravitational waves can affect the energy level of the qubit. That thing means that the data is lost or it would release to the wrong states. So in the future. There is the possibility that in space will be satellites that are sending warning about incoming gravitational waves or GRB:s.

https://www.quantamagazine.org/how-quantum-computers-will-correct-their-errors-20211116/

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