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The speed limit for quantum computers

 The speed limit for quantum computers




An artistic illustration of a matter-wave rolling down a steep potential hill. Credit: Enrique Sahagún – Scixel (ScitechDaily/Quantum Marbles in a Bowl of Light – The Speed Limit for Quantum Computations)


The minimum time that the quantum gate needs to react is the time that is the absolute limit for quantum computers. The quantum gate is the gate that cuts the data line, and the speed of that gate is the thing that determines the maximum speed of quantum computers. 

The fact is that all people who worked with quantum technology know that there are speed limits even for quantum computers. The speed of light is not the problem because long-distance superposition and entanglement between particles can surround the cosmic speed limit. But if we want that the superpositioned and entangled particles would bring visible or meaningful benefit for quantum systems. 

The distance between the systems must be enormous. The thing is that superpositioned and entangled particles are acting as quantum sticks. When another side of quantum entanglement is moving also other side is moving. But that thing doesn't remove the need for a quantum gate. 

So it separates the data packages and sends them to the right addresses. But the thing is that the quantum gate (quantum logic gate)  is more complicated than the gate (logic gate). 

The speed of that gate is enormous. But always when there is something that has mass. The speed has limits. One of the solutions for increasing the speed of that gate could benefit things like some atoms. The system can pump energy to the atom. And that thing can cause that the size of an atom can change. 

That thing can cut the photonic interaction. The other version is to use hydrogen atoms, and then the electromagnetic stress will cause changes to the trajectories of electrons. That thing can let the energy travel through protons and electrons. 

The error correlation is the problem with quantum computers. The error correction is the thing that is necessary for making a practical quantum system. The answer is to use two quantum systems that are getting the same data. The splitting photons can make sure. The data that is sent to two quantum systems is identical. 

And if there is some kind of difference between the answers. There is some kind of anomaly in the system. If the answers are also identical. The answer should be correct. And when the number of data handling lines increases. The possibility to find errors is also increasing. That increases the trust and accuracy of the quantum systems. 


https://scitechdaily.com/important-milestone-reached-in-quantum-computing-with-error-correction/


https://scitechdaily.com/quantum-marbles-in-a-bowl-of-light-the-speed-limit-for-quantum-computations/


https://en.wikipedia.org/wiki/Logic_gate


https://en.wikipedia.org/wiki/Quantum_logic_gate


Image: https://scitechdaily.com/quantum-marbles-in-a-bowl-of-light-the-speed-limit-for-quantum-computations/

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