A noisy, intermediate-scale quantum computing (nisq) stage is said to be the topmost quantum processors that has about 50 to 100 qubits, but are said to be never advanced enough to be able to attain fault-tolerance or even big enough to bring about sustainably in terms of quantum supremacy.
What does NISQ known for?
It connote Noisy Intermediate Scale Quantum. Intermediate scale and it is one that tells that one is talking about devices that are said to be large enough, and have about 50 qubits or more that is said to be enough.
Note that it is also one that a person cannot by brute force simulate the quantum system via the use of the most powerful existing digital computers.
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